torrance tract historic preservation plan
TRANSCRIPT
ACKNOWLEDGEMENTS
CITY COUNCIL Patrick J. Furey, Mayor
Heidi Ann Ashcraft
Tim Goodrich
Mike Griffiths
Milton S. Herring
Geoff Rizzo
Kurt Weideman
CITY CLERK Rebecca Poirier
CITY TREASURER Dana Cortez
PLANNING COMMISSION Robert Rudolph, Chair
Steven Polcari, Vice Chair
Sarah D’anjou
Mary Lou French
Scott Gobble
G. Rick Marshall
Richard Tsao
CITY ATTORNEY John Fellows, III
Patrick Sullivan
CITY STAFF Jeff Gibson, Director of Community
Development Department
Linda Cessna, Deputy Director
Gregg D. Lodan, Planning and Environmental
Manager
Carolyn Chun, Project Manager / Senior
Planning Associate
Kevin T. Joe, Planning Associate
Sunny Lai, Systems Analyst - GIS
PREPARED BY: Page & Turnbull
417 S. Hill Street, Suite 211
Los Angeles, CA 90013
www.page-turnbull.com
John Lesak, Principal
Flora Chou, Project Manager/Cultural Resource
Planner
Kimberly McCarron, Historic Architect
Josh Bevan, GIS Mapping
TABLE OF CONTENTS
1. INTRODUCTION .................................................................................................. 1
MISSION STATEMENT ................................................................................................ 4
WHY PRESERVATION MATTERS ................................................................................. 4
PREPARING THE DOCUMENT .................................................................................... 5
2. HISTORY AND CHARACTER ................................................................................. 6 TORRANCE TRACT HISTORY ..................................................................................... 6
NEIGHBORHOOD CHARACTERISTICS ....................................................................... 11
ARCHITECTURAL STYLES ........................................................................................ 13
3. PAST AND CURRENT PRESERVATION EFFORTS .................................................... 15 1979 HISTORIC RESOURCE SURVEY .......................................................................... 15
SMALL LOT, LOW MEDIUM OVERLAY ZONE ............................................................. 15
OLMSTED TRACT SURVEY AND HISTORIC CONTEXT STATEMENT ............................ 16
TORRANCE TRACT OVERLAY ZONE ......................................................................... 20
HISTORIC PRESERVATION ORDINANCE .................................................................... 20
4. HISTORIC PRESERVATION IN THE TORRANCE TRACT .......................................... 23 TORRANCE REGISTER OF HISTORIC RESOURCES ..................................................... 23
BENEFITS OF HISTORIC DESIGNATION .................................................................... 25
TORRANCE TRACT OVERLAY ZONE VS. HISTORIC DISTRICTS .................................. 27
PROCESS FOR HISTORIC DESIGNATION ................................................................... 30
WHAT MAKES A GOOD HISTORIC DISTRICT? ........................................................... 34
CONCENTRATIONS OF CONTRIBUTING RESOURCES FOR POTENTIAL HISTORIC
DISTRICTS ...................................................................................................... 36
THEMATIC HISTORIC DISTRICTS .............................................................................. 40
5. PROJECT REVIEWS IN HISTORIC DISTRICTS ......................................................... 41 MINOR PROJECT REVIEW ......................................................................................... 42
CERTIFICATE OF APPROPRIATENESS (C OF A) ......................................................... 45
CERTIFICATE OF DEMOLITION ................................................................................ 48
CERTIFICATE OF ECONOMIC HARDSHIP .................................................................. 51
6. DESIGN CONSIDERATIONS FOR PROJECTS IN HISTORIC DISTRICTS....................... 53 PROJECTS INVOLVING PARTIAL DEMOLITION .......................................................... 53
NEW CONSTRUCTION IN HISTORIC DISTRICTS ......................................................... 53
THREE COMMON PROJECTS IN THE TORRANCE TRACT ........................................... 55
7. RECOMMENDATIONS ........................................................................................ 62
8. SOURCES CITED ............................................................................................... 63
9. APPENDIX ........................................................................................................ 64 A. 2014 OLMSTED TRACT SURVEY ..........................................................................
B. RELEVANT ORDINANCES ....................................................................................
C. NATIONAL AND STATE PRESERVATION PROGRAMS ............................................
D. SECRETARY OF THE INTERIOR’S STANDARDS FOR THE TREATMENT OF
HISTORIC PROPERTIES .......................................................................................
E. CALIFORNIA ENVIRONMENTAL QUALITY ACT AND HISTORIC PRESERVATION
F. PRESERVATION RESOURCES ...............................................................................
G. ABBREVIATIONS AND NOTES .............................................................................
Report is best viewed as a two-page spread with cover sheet and printed double-sided.
May 2018 - 1 - Torrance Tract Final Historic Preservation Plan
1. INTRODUCTION
Torrance has long recognized the original, historic core of the city
as an important part of its identity. Now known as the Torrance
Tract (also as the Old Torrance Tract or Olmsted Tract), the city’s
core was developed by Jared Sidney Torrance in the early
twentieth century as a planned company town for the oil industry
(Figure 1). To lay out the town, Mr. Torrance retained the famed
Olmsted Brothers, sons of master landscape architect Frederick
Law Olmsted. The Olmsted Brothers’ plan divided the
approximately one square mile area into three districts, creating
an area for industry, an area for commercial uses, and an area for
housing defined by a central green. The new town was well
connected to the greater Los Angeles region by railroad and
streetcar lines. The Pacific Electric streetcar line carried people
and goods to and from Torrance with arrival into town punctuated
by Torrance’s signature arched bridge, designed by noted
Southern California architect Irving Gill (Figure 2).
Figure 1: Brochure map showing the planned residential and commercial areas surrounded by industry. Source: Torrance, The Modern Industrial City, 1913.
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Over time, the industrial uses found within the Torrance Tract
have evolved and while many of the commercial businesses and
buildings have come and gone, the residential areas have
remained remarkably constant. Primarily developed between
1912 and 1945, the housing stock ranges from grand houses
lining Post Avenue and the El Prado central green to modest
cottages, bungalows, and apartment. The pre-World War II
neighborhood character can still be seen and felt through original
built features: buildings, streets, and landscapes.
Since the 1970s and 1980s, Torrance has approached protecting
the unique character of the Torrance Tract’s residential areas in
mostly informal, voluntary ways. Demolition of older homes that
contributed to the tract’s character was discouraged, but not
prevented. Though new development of properties was
encouraged to be sensitive-- to the street pattern, setbacks, and
scale of the surrounding neighborhood-- compatibility with the
community’s physical character was not required. On some
blocks, accumulated changes over time have created an
inconsistent mix within the streetscape; on other blocks, the sense
of an early twentieth century neighborhood has already been lost.
A survey of the Torrance Tract conducted by the Torrance
Historical Society between 2013 and 2014 documented where
relatively unaltered pre-1945 homes remained, but also where
they no longer exist.
Figure 2: Pacific Electric Railroad Bridge designed by Irving Gill, as seen in 1988. Source: National Register of Historic Places nomination.
May 2018 - 3 - Torrance Tract Final Historic Preservation Plan
In response to the Torrance Historical Society’s survey results,
and to address development pressures, the Torrance City Council
enacted a temporary Torrance Tract Overlay Zone in March 2016
that became permanent in December 2017. As a planning tool,
the Torrance Tract Overlay Zone extended an existing Planning
Commission review process long used in one portion of the
Torrance Tract to about 850 relatively unaltered, pre-1945
residential properties throughout the Torrance Tract boundaries.
The overlay zone covers the area bounded by Dominguez Street
to the north, Western Avenue to the east, Plaza del Amo to the
south and Crenshaw Boulevard to the west (Figure 3).
At the same time, City Council initiated efforts to establish a
historic preservation ordinance to formally recognize and protect
historic buildings and historic districts. The preservation ordinance
offers those who own historic buildings, or live in an area where
there is a concentration of historic buildings, a more proactive and
direct tool to manage change. This Torrance Tract Preservation
Plan is intended to guide property owners, community members,
and the city’s decision makers in using the historic preservation
ordinance within the Torrance Tract. Additionally, the plan
provides references for historic preservation best practices.
Figure 3: Boundary of Torrance Tract Overlay Zone, outlined in orange. SourceLos Angeles County Assessor.
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MISSION STATEMENT
The primary purpose of the Torrance Tract Preservation Plan is to
encourage the listing of historic landmarks and districts in the
Torrance Register of Historic Resources in order to preserve the
Torrance Tract’s unique place in the city’s history, maintain its
neighborhood character, manage appropriate change, and
promote its sense of place. To accomplish this, the Preservation
Plan:
Increases awareness and appreciation for the Torrance
Tract’s founding role in Torrance’s history;
Fosters community pride in the historic and architecturally
distinguished housing stock in the Torrance Tract;
Promotes an understanding of managing growth and
changes based on preservation principles and
approaches;
Outlines processes for designating Historic Landmarks
and Historic Districts as well as project reviews for Historic
Landmarks and Contributing and Non-Contributing
Resources in Historic Districts;
Identifies concentrations in the Torrance Tract to consider
becoming Historic Districts; and
Educates owners and residents about potential benefits
of and incentives available for historic preservation.
The Torrance Tract Preservation Plan focuses on the residentially
zoned areas and does not include industrial or commercial areas.
WHY PRESERVATION MATTERS
The Torrance Tract has in place a Torrance Tract Overlay Zone
as a mechanism to review and manage change. Why is historic
preservation needed as well? Historic preservation is not just
about freezing a building or a neighborhood in time, although in
some cases, that may be appropriate and what the community
wants. More generally, preservation prioritizes keeping the
historically significant features, spaces, and patterns that make a
community special and that give it character and a sense of place.
It creates a process to accommodate change that is respectful to
those features and does not harm them. Like sustainable
development, historic preservation honors the past, meets
contemporary needs, and conserves enough so that future
May 2018 - 5 - Torrance Tract Final Historic Preservation Plan
generations can understand and experience the historic
significance of the place. A fundamental premise of historic
preservation is to keep the authentic, physical fabric of a place—
those things that are tangible and true to the period they were
built—over replacements, copies, or current trends.
However, change can and will still happen, and even historic
places must adapt to new demands so they continue to function
and be occupied. Many cities demonstrate that economic
development and historic preservation can be mutually beneficial,
both in commercial areas and in historic neighborhoods that have
become highly desirable. By approaching change from a
preservation perspective, protecting the historic character of a
place is the focus and ensures that what makes a place unique
will not be lost.
PREPARING THE DOCUMENT
This plan is built upon the foundation of previous preservation
efforts within the City of Torrance related to the Torrance Tract.
The following documents were reviewed and, where appropriate,
incorporated into this plan.
Results of the 1979 survey as published in the California
Historical Resources Information System, Los Angeles
County, 2011
Olmsted Tract Executive Summary and Historic Context
Statement prepared by Nakada+Associates, 2014
Results of the 2014 Olmsted Tract Survey conducted by
the Torrance Historical Society and Nakada+Associates
Torrance Municipal Code and relevant ordinances,
including the Torrance Tract Overlay Zone Ordinance,
Small Lot, Low Medium Overlay Zone Ordinance, and
revised Accessory Dwelling Units ordinance
Presentations from Historic Preservation Workshops
conducted by the City of Torrance in 2014 and 2015
Torrance Architectural Design Guidelines
Torrance Historic Preservation Ordinance, adopted in
December 2017.
Photographs are by Page & Turnbull from 2016 and 2017, unless
otherwise noted.
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2. HISTORY AND CHARACTER
TORRANCE TRACT HISTORY
The Torrance Tract dates to the earliest conception of the City of
Torrance after developer Jared Sidney Torrance and his
Dominguez Land Company purchased 3,000 acres of Rancho
San Pedro from the Dominguez family in 1911. Accounting for
roughly 600 acres, the Torrance Tract is bound by Dominquez
Street to the north, Western Avenue to the east, Plaza Del Amo to
the south, and Crenshaw Boulevard to the west (Figure 4).
Torrance hired the Olmsted brothers, Charles and Frederick Law
Olmsted, Jr., sons of renowned landscape architect, Frederick
Law Olmsted, to re-envision the typical company town for
Torrance’s Union Oil Company. Torrance and the Olmsteds
envisioned the ideal, modern city as anchored by industry but
balanced with affordable housing for workers, commercial centers
to serve residents, and an idyllic setting for recreation, culture, and
Figure 4: Aerial of Torrance Tract, ca. 1925, looking south to Palos Verdes. Source: Los Angeles Public Library.
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education. Torrance was inspired by the garden city movement,
yet his drive for efficiency altered curvilinear streets typical of
garden city and Olmstedian designs. Using a Y-shaped land
pattern defined by Torrance Boulevard and Cabrillo Avenue, the
business district was in the junction of the Y (Figure 5). Industry
was at the northeast and east outside and around the leg of the Y
away from the residential areas inside the Y. Residential streets
in the Y ran southwest of the business district and surround the
park commons, El Prado Park. Like the streets, the linear park
was angled to the southwest to frame a view of the San Gabriel
Mountains to the northeast and was lined with homes.1
Further beyond the Y-shape, the street pattern shifted to an
orthogonal layout with streets and rectangular blocks aligned
north-south. Not wanting to compromise the picturesque streets
for utilities, the street grids incorporated alleys between residential
blocks for utilitarian needs.
Notable Southern California architect, Irving Gill, was named the
Chief Architect of the city to continue the vision of this redefined
city model. He designed prototypical model homes, of which only
ten were built, as well as reviewed the designs for other Torrance
1 Peggy Coleman Dalton, Torrance: A City for Today, (USA: Windsor Publications, 1990), 15.
Figure 5: Torrance Business District, ca.1920s. Source: Los Angeles Public Library.
May 2018 - 8 - Torrance Tract Final Historic Preservation Plan
Tract residences. Gill also designed other projects within the city
including hotels, commercial buildings, and the gateway bridge for
the Pacific Electric Railway (PE) system. The PE rail system, also
known as the Red Car line, was one of the main manufacturing
firms in Torrance, though its stop allowed workers to commute to
Torrance rather than purchase a home locally.2
Several other industries anchored the early vision of Torrance,
including the Union Tool Company, Llewellyn Iron Works, Pacific
Metal Products, and Moore Motor Truck Company.3
Commercially, the Torrance Athletic Club opened in 1913, with the
First National Bank of Torrance established by Judge George W.
Post in 1914 and the Torrance Herald also printing by 1914.4 The
main building of Torrance High School opened in 1917.
The residential development of the company town did not grow as
rapidly as hoped. Most of the housing from the 1910s was worker
housing, which were either clusters of simple vernacular cottages
at the northern end of the Torrance Tract or modest Craftsman
bungalows on individuals lots found at the northern and southern
ends (Figure 6). A few larger homes scattered along the angled
streets of the Y, but the residential areas of the tract were largely
undeveloped.
2 Dalton, 17. 3 Thomas D. Campbell & Company, Torrance: The Modern Industrial City, (Los Angeles: Thomas D. Campbell & Company, 1913), 8-9. 4 Dalton, 20.
Figure 6: Early photograph of Torrance Tract street, ca. 1913. Source: The ModernIndustrial City courtesy of the Los AngelesPublic Library.
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Wary of annexation by the growing City of Los Angeles, members
of the Torrance Chamber of Commerce and the Dominguez Land
Company moved to incorporate the City of Torrance in 1921.5
Shortly after, the discovery of petroleum led to a second wave of
development in the Torrance Tract and an expansion of the city
boundaries to the north, south, and west beyond the original tract.
The 1920s boom in the Torrance Tract resulted in more houses
built that filled in the Y and the creation of several streets toward
the west and northwest (Figure 7). These streets saw modest
houses often with red clay tile roofs in the popular Spanish
Colonial Revival, Mission, and Monterey styles of the period.
The success of the local industrial companies and farming
communities allowed for steady growth and annexing of nearby
neighborhoods. In the Torrance Tract, the Depression years of the
1930s saw some infill residential development, as did the World
War II years in the early 1940s. The war provided several jobs at
the factories within Torrance along with new technologies in
aviation. Zamperini Field, Torrance’s municipal airport, was
established in 1946.6
However, by the end of World War II in 1945, the residential area
of the Torrance Tract had been mostly built out.7 The influx of new
workers and residents to Torrance in the postwar years resulted
in growth in other areas of the city. As the mid-century suburban
development of Torrance converted farmland into housing tracts
and shopping malls, the business district of the Torrance Tract
was no longer the city’s commercial center. The heavy industry of
the early twentieth century also gave way to the business parks of
the late twentieth century. However, the residential areas of the
Torrance Tract remained relatively stable, with their stock of
housing dating from 1912 to 1945.
5 Dalton, 20. 6 Dalton, 22. 7 Nakada+Associates, “Olmsted Tract; Torrance California 2011-2013 Survey of Historic Resources,” Executive Summary.
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Figure 7. Residential as well as commercial and industrial parcels in Torrance Tract by date of construction, based onLos Angeles County Assessor data.
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NEIGHBORHOOD CHARACTERISTICS
The residential areas in the Torrance Tract share many common
characteristics, but also have distinct sections. A legacy of the
Olmsteds’ design is the pattern of main streets alternating with
service alleys seen throughout the tract (Figure 8). As a result,
primary streets are lined with a consistent rhythm of one- and two-
story houses and not interrupted by driveways. Instead, garages
that became more common with the advent of car ownership in
the 1920s are generally placed toward the rear of the lots and
accessed from the alleys. Utilities, like overhead telephone and
electrical lines, are also located along the alleys.
At the street front, the houses are typically setback from the street
at a consistent distance. The distance varies from sub-area to
sub-area, but provides a constant row of open space along each
block that is reinforced by the presence of a planting strip between
the sidewalks and the main streets (Figure 10 and Figure 11). Few
street trees are found in the planting strips.
Figure 8: Developed blocks in the Torrance Tract from the 1916 Sanborn Fire Insurance map. The area had an alternating pattern of wide streets (light grey) and narrow service alleys (dark grey) as well as consistent front setbacks(blue dashes). Source: Los Angeles Public Library, edited by Page & Turnbull
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Different areas within the Torrance Tract have other distinct
characteristics. Railroad tracks continue to crisscross the
Torrance Tract, creating odd lot sizes and physical barriers
between areas of the tract. The houses in the middle of the Y-
shaped plan along Post Avenue are among the largest and
grandest in the tract (Figure 9). Other houses along El Prado Park
also tend to be larger in scale than seen elsewhere in the Torrance
Tract (Figure 10).
Generally, the lots in the center of the Y are 50-foot wide lots that
create a greater sense of openness than the 40-foot wide lots
more commonly found north of Torrance Boulevard, west of
Madrid Avenue and its train tracks, and south of Carson Street on
Arlington, Gramercy, and Andreo avenues. These sub-areas tend
to have a denser feeling (Figure 11). Some streets, such as Beech
Avenue and Acacia Avenue between El Dorado and Carson
streets at the western end of the tract, currently have a consistent
tree canopy created by trees likely planted in the front yards at the
same time the streets and houses were developed (Figure 12).
Figure 9: Larger homes typically found on Post Avenue. Figure 10: Houses facing El Prado Park.
Figure 11: Smaller houses from the earliest development period south of Carson Street.
Figure 12: Consistent tree canopy found on Beech Avenue north of Carson Street.
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In general, the residential area in the Torrance Tract is defined by:
Y-shaped street plan laid out by the Olmsted Brothers
further crisscrossed by railroad tracks
Central linear park extending from commercial business
center into residential area
Street pattern with alternating front streets and rear
service alleys
o Detached garages accessed from alleys
o Minimal curb cuts
o Planting strips between sidewalks and front
streets
Single-story and two-story buildings in residential areas
o Various styles and periods
o Consistent setbacks
o Garages and second units at rear
ARCHITECTURAL STYLES
The residential buildings in the Torrance Tract include a variety of
styles typical for the main period of its development from 1912 to
1945 (Figure 13 through Figure 16). The 2014 Olmsted Tract
Survey report (discussed below) identified the styles found in the
tract as:
Craftsman (1895-1925)
Mission Revival (1890-1920)
Spanish Colonial Revival (1916-1931)
Monterey (1853-1955)
Neo-Classical Revival (1893-1940)
Tudor Revival (1910-1940)
Prairie Style (1900-1920)
French Eclectic (1915-1945)
Colonial Revival (1880-1955)
Minimal/Builder (1935-1950)
Modernistic (1920-1960)
Development since 1945 tends to be more recent infill
replacements that are scattered throughout the Torrance Tract.
The 2014 Olmsted Tract Survey in Appendix A provides a more
detailed summary of each style and examples from the survey.
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Figure 13: Craftsman style. Source: Olmsted Tract 2014 Survey.
Figure 14: Spanish Colonial Revival style. Source: Olmsted Tract 2014 Survey.
Figure 15: Prairie style. Source: Olmsted Tract 2014 Survey. Figure 16: Tudor Revival style. Source: Olmsted Tract 2014 Survey.
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3. PAST AND CURRENT PRESERVATION EFFORTS
Efforts to recognize and protect Torrance Tract’s historic
architecture and neighborhood character started as early as the
late 1970s.
1979 HISTORIC RESOURCE SURVEY
As stated in the Nakada+Associates report,
In 1979 The [sic] City of Torrance completed a city wide
inventory of historic resources. The inventory was
completed by J. Roger Hatheway and John Chase for the
City of Torrance Planning Department [now known as the
Community Development Department] utilizing the State
of California Department of Parks and Recreation Historic
Resources Inventory Sheets which identified each
property by address, its date of construction, its style and
a brief description.8
The survey inventoried over 100 buildings and structures
throughout Torrance that were considered to be potentially
historic. Of those, 84 are in the Torrance Tract.9 The properties
from the survey appear to be listed in the Historic Property
Directory, an inventory of designated and surveyed properties
maintained by the California Historic Resources Information
System (CHRIS). The properties have CHRIS status codes that
are mostly 5S2, meaning the individual property is eligible for local
designation. A few have 3S status codes, meaning they appear
eligible for the National Register of Historic Places through survey
evaluation. The Community Development Department staff
reviewed the list of properties in the Historic Property Directory
and found that some had been demolished but many remain.
SMALL LOT, LOW MEDIUM OVERLAY ZONE
The city first created an overlay zone within the Torrance Tract in
1987 called the Small Lot, Low Medium Overlay Zone. It covers
primarily the residential properties along Gramercy and Andreo
avenues between Carson Street at the north and Plaza del Amo
to the south in the southwest corner of the Torrance Tract.
8 Nakada+Associates, “Olmsted Tract; Torrance California 2011-2013 Survey of Historic Resources,” 11. 9 Nakada+Associates, 11.
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Any development, including new construction and remodeling or
enlarging an existing building within the Small Lot, Low Medium
Overlay Zone requires review by the Torrance Planning
Commission. The purpose of the review was to ensure that
The work tended to preserve neighborhood
characteristics;
The intensity of proposed use is compatible with the
surrounding properties;
Parking requirements are met while minimizing the need
for driveway curb-cuts and offering enough storage space
so that garages will be used for cars; and
Suitable open space is provided.
In addition, for projects where the building would exceed a certain
size, the Planning Commission would need to determine that the
project, “would not be materially detrimental to the public welfare
and to other properties in the vicinity.”
If the proposed project does not include demolition of the main
house, does not propose a driveway curb cut on the street, and
provides at least three enclosed garages, then the project does
not require Planning Commission review. However, requests for
tandem parking would require Planning Commission review and
approval.
OLMSTED TRACT SURVEY AND HISTORIC
CONTEXT STATEMENT
In early 2010, the Torrance Historical Society undertook efforts to
survey the Torrance Tract. With assistance from
Nakada+Associates Inc., the Historical Society completed a
survey of the properties in the Olmsted Tract. The Olmsted Tract
corresponds with the Torrance Tract, which has also been
referred to as the Old Torrance Tract. According to the survey
report’s executive summary, community volunteers surveyed
nearly 1,800 residential, commercial, and industrial properties
across about the 100 city blocks between 2013 and 2014. They
were supervised by members of the Torrance Historical Society
and used a framework prepared by Nakada+Associates.
The purpose of the survey was to document all buildings,
designed landscapes, and other features that were considered
contributing elements to an assumed potential historic
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preservation district.10 Nakada+Associates prepared historic
contexts on related topics to accompany the survey, which
included sections on:
Torrance and the Garden City Movement
Jared Sydney Torrance, An Urban Design Vision
Fredrick Law Olmsted, Jr., Urban Designer
Irving Gill, Architect
The Birth of Torrance
Design Influences in Torrance
The period of significance identified for the potential historic
preservation district encompassing the entire Torrance Tract was
1912 to 1945. The start date corresponded to the initial
construction of the Olmsted Tract and ended after World War II
when the tract was mostly developed and architectural design
started to change toward Modernism.11
10 Nakada+Associates, 1. 11 Nakada+Associates, 2.
Figure 17: A Spanish Colonial Revival residence identified as a Contributor in the survey.
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Nearly 1,800 properties were surveyed across the 100 city blocks
in the Torrance Tract. The properties were categorized as a
“Contributor,” “Altered-Contributor,” or “Non-Contributor” (Figure
17)
“Contributor”: Any building built with in the period of
significance that retains its original form, massing, and
features.
“Altered-contributor”: A structure that has been altered,
but in a manner that is reversible and its historic integrity
remains.
“Non-Contributor”: A building constructed outside the
period of significance.
The survey found 523 Contributor and 327 Altered-Contributor
properties within the Torrance Tract; the remainder are presumed
to be Non-Contributors (Figure 18). Review of some properties
were consistent with the findings of the 1979 survey, while others
found that previously eligible properties were no longer intact or
standing. The survey results are useful as a reference for
identifying potentially historic properties and where they may be
concentrated. See Appendix A for the 2014 Olmsted Tract Survey
Executive Summary, Historic Context Statement, and Historic
Resource Survey Summary.
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Figure 18: Properties identified by the 2014 Olmsted Tract Survey as “Contributor” and “Altered-Contributors.”
May 2018 - 20 - Torrance Tract Final Historic Preservation Plan
TORRANCE TRACT OVERLAY ZONE
The 2014 Olmsted Tract Survey indicated that approximately half
of the properties in the Torrance Tract were Contributors or
Altered-Contributors, meaning they were built between 1912 and
1945 and retained some level of their original character, despite
alterations. However, it also showed that much of the area was in
danger of losing more of these older homes, especially in the
areas zoned R3 for multi-family apartments and condominiums,
and in the areas zoned R2, where two units on a lot are allowed
and single-lot townhome subdivisions are increasingly popular.
Community members urged the Torrance City Council to protect
the neighborhood character of the Torrance Tract. The City
Council started efforts to draft a historic preservation ordinance,
but also established the Torrance Tract Overlay Zone (Ordinance
3799) in March 2016. Originally intended as a temporary measure,
it was modeled after the Small Lot, Low Medium Overlay Zone.
The interim Torrance Tract Overlay Zone created a project review
process to manage on-going change, but only for certain
properties. The Planning Commission reviews all new
construction, additions, demolitions, and exterior alterations
affecting residential properties identified by the 2014 Olmsted
Tract Survey as Contributing or Altered-Contributing. In essence,
the Torrance Tract Overlay Zone extended the review process for
the Small Lot, Low Medium Overlay Zone to properties in the
Torrance Tract that retained some amount of historic character.
The interim overlay zone and review process remained in place
while a historic preservation ordinance was crafted. However, in
December 2017, the City Council voted to make the Torrance
Tract Overlay Zone permanent at the same time it adopted the
historic preservation ordinance.
HISTORIC PRESERVATION ORDINANCE
The adopted Torrance preservation ordinance establishes:
Torrance Register of Historic Resources (Torrance
Register) to safeguard and enhance Torrance’s
architectural, cultural, and historic heritage;
Criteria for designating Historic Landmarks and Historic
Districts to the Torrance Register;
Project review process to manage changes to Historic
Landmarks and Historic Districts;
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Historic Preservation Commission to implement the
ordinance; and
Incentives to encourage protection of Historic Landmarks
and Historic Districts.
The ordinance creates a voluntary preservation program where
owners agree to have their properties listed in the Torrance
Register. For individual Historic Landmarks, the property owner,
or authorized agent, must sign the nomination form to start the
designation process. For Historic Districts, all of the property
owners must agree in writing to become a Historic District. Once
designated, every property within the district boundaries is subject
to the preservation ordinance.
The city offers owners incentives to list their properties in the
Torrance Register and ensure that these historic resources will be
taken care of correctly so that their historic character will remain.
May 2018 - 23 - Torrance Tract Final Historic Preservation Plan
4. HISTORIC PRESERVATION IN THE TORRANCE TRACT
The Torrance Tract Overlay Zone offers a measure of protection
by reviewing a select number of properties identified as potentially
contributing to the historic character of the Torrance Tract.
However, changes to the remaining properties in the tract still
have the potential to alter its character drastically. For those
interested in recognizing and seeking greater protections their
historic home or neighborhood, listing in the Torrance Register of
Historic Resources is available.
TORRANCE REGISTER OF HISTORIC RESOURCES
The Torrance Register of Historic Resources is Torrance’s official
list of locally designated Historic Landmarks and Historic Districts.
Individual buildings, structures, objects, sites, cultural landscapes,
signs, or natural features, or groupings of these elements, can be
listed in the Torrance Register, if they:
1) Meet one or more of the significance criteria for
designation, including:
Figure 19: An intact street in the Torrance Tract reflecting its early 20th century character.
May 2018 - 24 - Torrance Tract Final Historic Preservation Plan
a. association with important persons or events or
patterns in history;
b. architectural distinction as the work of a master
designer or having high artistic value;
c. the potential to yield important information about
history; OR
d. are among the last, best remaining examples of a
type.
2) Retain enough integrity, i.e., has not been changed so
much as to be unrecognizable, AND
3) Have the support and consent of the property owners.
Not all old buildings or areas are historic, nor do they all qualify for
listing in the Torrance Register. On the other hand, not all historic
buildings are grand architectural gems; many are modest yet
intact examples of past eras or represent something important in
history. It is up to the Historic Preservation Commission to decide
if properties meet the criteria for listing and have historic integrity
based on the research and analysis presented in the application.
Torrance’s Community Development Department staff helps to
administer the Torrance Register for the city.
Figure 20: Examples in the Torrance Tract of Craftsman-style (top) and Spanish Colonial Revival-style (below) houses that have architectural integrity. That is, they are still recognized as their styles, despite minor changes.
May 2018 - 25 - Torrance Tract Final Historic Preservation Plan
BENEFITS OF HISTORIC DESIGNATION
The charm and historic character of the Torrance Tract has
fostered a strong sense of pride in the neighborhood. Some
owners recognize that their properties are important to Torrance’s
heritage, and seek to list them as historic. For these owners,
designation as a Historic Landmark or as a Historic District can
also offer the following benefits.
Managed, Predictable Change
Becoming listed in the Torrance Register does not mean the
property will become a museum piece and never change. All
properties will and must change so that they can continue to
function and meet the needs of each generation. But, as a Historic
Landmark or Historic District, the change will be managed in more
predictable ways. Alterations will be reviewed using nationally-
recognized preservation principles known as the Secretary of the
Interior’s Standards for the Treatment of Historic Properties (SOI
Standards) and its accompanying Guidelines for Preserving,
Rehabilitating, Restoring, and Reconstructing Historic Buildings
(SOI Guidelines).
Unlike more general architectural or design guidelines, the focus
of the SOI Standards and Guidelines is on keeping the features
that make the property historic—called character-defining
features. These features range from the large scale, like the
overall shape and massing of a building, to the small details like
archways, windows, and materials that give the property its
historic character. In using the SOI Standards as the basis for
reviews, the goal is to ensure that character-defining features will
be maintained so that the property’s historic integrity is
maintained.
Clear Review Process
The Torrance preservation ordinance has set out a clear review
process where city staff can review and approve a wide range of
minor projects that clearly meet the SOI Standards. This allows
for a faster, easier path for those projects that will not alter the
character of a historic district. The Minor Project review (see
Chapter 5, Project Reviews in Historic Districts) can often address
the most common improvements in ways that saves time and
resources for both the owners and the city.
SOI Standards
The Secretary of the Interior’s
Standards for the Treatment
of Historic Properties (SOI
Standards) are a series of
concepts about maintaining,
repairing, and replacing
historic materials, as well as
designing new additions or
making alterations that
promote best practices to help
protect historic, cultural, and
architectural resources. They
provide a framework for
making decisions about work
or changes to these
resources. The SOI Standards
are often the benchmark by
which federal agencies and
many local government
bodies evaluate work on
historic properties.
The SOI Standards offer four
approaches to the treatment
of historic properties:
Preservation,
Rehabilitation,
Restoration, and
Reconstruction.
The appropriate treatment to
use will depend on the project
or project component.
Typically, the Standards for
Rehabilitation are the most
widely used and offer the
greatest flexibility; they are the
SOI Standards approach
referenced in this study.
(See Appendix E and
https://www.nps.gov/tps/stand
ards.htm).
May 2018 - 26 - Torrance Tract Final Historic Preservation Plan
More complicated projects or those that do not clearly meet the
SOI Standards, such as large additions, new buildings, and
demolitions, are reviewed by the Historic Preservation
Commission (HPC). The HPC includes professionals with
expertise in historic preservation, historic architecture,
architectural history, and other related fields who can apply their
know-how in the project reviews.
Stability and Increased Value
Several studies have found that property values in historic districts
often increase faster than similar, non-designated areas because
of the predictability offered by the preservation-based review
process.12 By agreeing to listing in the Torrance Register of
Historic Resources, property owners are assured that the
character of the neighborhood will not change drastically, and they
are more likely to reinvest in their properties knowing that
neighbors will not be allowed to make inappropriate alterations or
build out-of-scale developments. Outsiders looking for speculative
development opportunities may be discouraged from purchasing
in historic districts because of the additional review. Historic
designation may mean more responsibility for each owner, but it
also means more stability that can be a buffer from the extreme
ups and downs in the real estate market.
Incentives
Recognizing that preserving historic properties appropriately may
require more resources, the City of Torrance offers owners of
historic properties several incentives, including:
Mills Act
The Mills Act is a statewide program available through cities to
property owners of historic properties. It offers different ways to
calculate property tax that can provide substantial savings in
exchange for the rehabilitation and long-term maintenance of the
historic property. Owners enter into a contract with the city that
outlines the maintenance, repair, or rehabilitation items that the
12 For example, see “Benefits of Residential Historic District Designation for
Property Owners,” from the Historic Preservation Officer of Tucson, Arizona, which
offers a summary of economic surveys from around the county. It can be found at
the Advisory Council for Historic Preservation’s website on Impacts of Historic
Property and District Designation, along with several other studies,
http://www.achp.gov/economic-designation.html.
May 2018 - 27 - Torrance Tract Final Historic Preservation Plan
owner agrees to complete during the contract’s 10-year term,
which renews continuously.
The City of Torrance is establishing a Mills Act program that will
be available to properties listed in the Torrance Register as
Historic Landmarks or Contributing Resources in Historic Districts.
The amount of tax savings varies property by property, and is
calculated by the Los Angeles County Office of the Assessor.
Typically, recent owners are more likely to see sizable tax savings
than long-time owners. However, the Mills Act can be an attractive
selling point, as the contracts are recorded on the property deed
and transferred to future owners who commit to maintaining the
historic property.
The Mills Act is a voluntary program that owners will apply for and
be approved through the process established by Torrance.
California Historic Building Code
The California Historic Building Code (CHBC) allows for
reasonable alternatives in certain situations when strict adherence
to building codes would affect the historic character of qualified
historic buildings. In Torrance, the CHBC is available to those
properties listed in the Torrance Register as Historic Landmarks
and Contributing Resources in Historic Districts.
Modifications to Development Standards
The city may offer certain reductions or modifications to
development standards for Historic Landmarks or properties in
Historic Districts to encourage preservation of the historic
resource. These may include flexibility in parking design
standards, retaining non-conforming setbacks, or modifications
determined on a case-by-case basis.
TORRANCE TRACT OVERLAY ZONE VS. HISTORIC
DISTRICT
What is the difference between the Torrance Tract Overlay Zone
and designation as a Historic District? There are three key
differences:
The overlay zone is already in place for the entire
boundary of the Torrance Tract, while no Historic District
has been designated yet. If residents in an area of the
Torrance Tract decide they would like to become a
May 2018 - 28 - Torrance Tract Final Historic Preservation Plan
Historic District, they can apply through the new
designation process.
Once an area is designated a Historic District, project
review follows the historic preservation review process,
rather than then the one for the Torrance Tract Overlay
Zone.
Once designated, the Contributing Resources in the
Historic District qualifies for available preservation
incentives, like the Mills Act, the California Historic
Building Code, and modifications to development
standards; these incentives are not available to the other
properties in the Torrance Tract Overlay Zone.
TT Overlay Zone Historic District
Applicability
2014 survey’s Contributors
and Altered Contributors*
Properties in designated
Historic Districts**
Properties Reviewed
Contributor/Contributing Resource Yes Yes
Altered Contributor Yes Yes, as Contributing
Resource
Others/Non-Contributing Resource No Yes, for compatibility
New Infill Construction No Yes, for compatibility
Review Process
Review Body Planning Commission Historic Preservation
Commission
Review Standard Torrance Architectural Design
Guidelines
SOI Standards and
Guidelines
Review delegated to staff Limited minor projects Most minor projects
Incentives No Yes * See Figure 18 map. ** One-time owner approval at designation.
Unlike in the Torrance Tract Overlay Zone, all the properties in a
designated Historic District have some level of review for
changes—for Contributing Resources to protect their historic
features and for Non-Contributing Resources to ensure their
changes be respectful and compatible with the district’s historic
character. This all-around approach assures owners that their
neighborhood will not change drastically over time. With the
Torrance Tract Overlay Zone, that predictability is less certain,
since its reviews are limited only to the properties identified in the
2014 Olmsted Tract Survey.
The project review process is also different in the Torrance Tract
Overlay Zone than in a Historic District. Project review under the
Table 1: Torrance Tract Overlay Zone vs. Historic Districts
May 2018 - 29 - Torrance Tract Final Historic Preservation Plan
Torrance Tract Overlay Zone is primarily based on the Torrance
Architectural Design Guidelines. The Architectural Design
Guidelines describe certain architectural styles typically found in
Torrance, summarize their typical characteristics, and offer simple
guidelines based on the SOI Standards for new construction and
remodels. The CDD staff can review some minor projects under
the Torrance Tract Overlay Zone and the remainder are reviewed
by the Planning Commission.
With a Historic District, reviews are based on the principles in the
SOI Standards. Within the framework of the SOI Standards and
the examples in the SOI Guidelines, CDD staff can review and
approve a wider range of minor projects. Larger and more
complex projects go before the Historic Preservation Commission,
which is a group with expertise in history, design, and historic
preservation.
Torrance’s
Architectural
Design Guidelines
Torrance’s Community
Development Department
offers Architectural Design
Guidelines to assist property
owners in the restoration,
renovation, and preservation
of residential structures with
“special significance to the
heritage of Torrance.”
They describe architectural
styles typically found in
Torrance, including in the
Torrance Tract, and
summarize their typical
characteristics or character-
defining features.
Simple guidelines based on
the SOI Standards for new
construction and remodels are
included, as well as a glossary
of architectural terms.
Torrance’s Architectural
Design Guidelines are
available at the city’s website.
Figure 21: Sample pages from Torrance’s Architectural Design Guidelines
May 2018 - 30 - Torrance Tract Final Historic Preservation Plan
PROCESS FOR HISTORIC DESIGNATION
Any person, group, or the city may begin the designation process
for a Historic Landmark or a Historic District. However, the
property owner(s) must agree to the designation by signing the
application form or petition. As a result, historic designation is
usually initiated and driven by the property owner(s). The process
generally includes:
1. Submitting a completed application form to the Torrance
CDD explaining how the property or area meets one or
more of the designation criteria.
2. CDD staff reviews the application and requests additional
information if the application is incomplete.
3. Once the application is deemed complete, a hearing
before the Torrance Historic Preservation Commission
(HPC) is scheduled.
4. At the HPC hearing, the applicant presents the case for
why the property or area should be designated, and the
HPC makes its determination to approve, modify, approve
with conditions, or deny designation.
The HPC’s decision is final, though an appeals process is
available. It should be noted that a temporary hold on issuing
building permits for major work may be placed on the nominated
property during the designation process. However, minor projects
can still be reviewed and approved at the staff level.
For Historic Districts, the designation process has a few additional
steps, as they involve multiple properties and multiple owners. In
addition to how the group of properties meet the designation
criteria, the Historic District application also needs to
Identify the boundaries of the potential district;
Confirm the integrity threshold of at least 66% of the
properties are Contributing Resources;
Gather supporting signatures from 100% of the owners
within the potential district.
The preliminary hearing is the first of two HPC hearings that is
needed during the approval process. The hearing is an
opportunity for owners, residents, and members of the public to
voice their support, or opposition, to historic district designation. It
is also a chance for HPC to confirm that the district meets the
criteria for listing in the Torrance Register, has enough integrity
May 2018 - 31 - Torrance Tract Final Historic Preservation Plan
both in the required percentage of Contributing Resources as well
as the Contributing Resources themselves having integrity, and to
gauge owner support for the district.
If HPC votes that the historic district qualifies for listing, CDD staff
will prepare a ballot to be sent to all owners within the proposed
boundaries of the historic district. All owners need to return their
written ballots with a yes vote for CDD staff to schedule the second
and final HPC hearing.
At the second hearing, HPC will confirm the balloting and make
findings to approve, modify, approve with conditions, or deny
designation of the historic district. The decision of HPC is final but
can be appealed to City Council within 15 days of the decision.
May 2018 - 32 - Torrance Tract Final Historic Preservation Plan
PROCESS FOR DESIGNATING A HISTORIC LANDMARK
HPC decision may be appealed to City Council within 15 days of
issuance.
Application is filed with CDD and reviewed for completeness with: - How the property meets one or more
designation criteria; - Photographs or other means of
demonstrating historic integrity; - Owner’s signature on the application.
HPC makes findings and approves, or conditionally approves in full or in part, the property as a Historic Landmark.
HPC denies application and the property is not a Historic Landmark.
CDD prepares a designation report and recommendation to HPC. Application is scheduled for review at next available HPC meeting. Notice will be publicly
posted.
HPC hears the application at preliminary hearing. Does HPC find the property meets at least one of the designation
criteria and has integrity?
A permit hold is in place for major work that would require Certificate of Appropriateness
or Certificate of Demolition.
Yes
No
Incomplete application is returned for additional information or revision.
May 2018 - 33 - Torrance Tract Final Historic Preservation Plan
PROCESS FOR DESIGNATING A HISTORIC DISTRICT
Application is filed with CDD and reviewed for completeness with: - Survey map and historic context - 66% contributing properties within
proposed district (required integrity) - Petition of interest from 100% of
owners (required support)
HPC makes findings and approves or conditionally approves in full or in part,
the area as a Historic District
HPC denies application and the district is not established.
HPC decision may be appealed to City Council within 15 days of
issuance.
CDD prepares a designation report and recommendation to HPC. Application is scheduled for review at next available HPC meeting. Notice will be publicly
posted.
HPC hears the application at preliminary hearing. Does HPC find the
potential historic district has merit?
No
A permit hold is placed on properties in the potential historic district for major work that would require Certificate of Appropriateness
or Certificate of Demolition.
Once ballot deadline ends and votes are tallied, second HPC hearing is
scheduled. Notice will be publicly posted.
Have 100% of owners submitted written consent?
Yes
No YesCDD mails ballots for owner consent voting.
Incomplete application is returned for additional information or revision.
May 2018 - 34 - Torrance Tract Final Historic Preservation Plan
WHAT MAKES A GOOD HISTORIC DISTRICT?
A Historic District is a grouping or concentration of buildings,
structures, sites, objects, landscapes, natural features, street
patterns, or other resources that have a special historic, cultural,
architectural, community, or aesthetic value. It is different from
other parts of a city typically because of three things:
Significance
A Historic District has historic or architectural significance
meaning it reflects an important part of history, such as an
association with an important event, trend, or person, or is a
distinctive example of a particular building style or the work of an
architect. A Historic District can also reflect a significant period in
Torrance’s growth, in how the city was planned or shaped, or as
an example of city or community planning. Its typically has a
specific period of significance, which is time frame in which most
of the district was constructed or the important association
occurred. The period of significance can be one year or a range
of years.
Cohesive Character
A Historic District usually has a unified architectural sense as seen
through those character-defining physical features, including the
design of its buildings (by types, scale, styles, etc.), the setting
created by street patterns (straight, curving, cul-de-sacs, alleys,
etc.), topography (flat, hillside, etc.), and landscaping (parkways,
street trees, etc.), or by other physical characteristics. These
features are known as Contributing Resources, which are those
elements that collectively contribute to a district’s historic
importance and special character and were built during its period
of significance. Historic Districts usually also have some Non-
Contributing Resources, those that may not have been built
during the district’s period of significance, or have been so altered
that they no longer contribute to the Historic District’s character.
To be a good district candidate, the area or grouping typically has
more Contributing Resources than Non-Contributing so it can
strongly convey the cohesive character that makes it different from
non-historic areas. The exception is for Thematic Districts, which
are properties related to each by a theme, such as by architectural
style, type of construction, work of a specific architect, or in other
ways unified aesthetically or historically, but are not
geographically adjacent to each other in a grouping.
May 2018 - 35 - Torrance Tract Final Historic Preservation Plan
It should be noted that Contributing Resources can be listed also
as Historic Landmarks, if they individually meet the criteria for
listing. Some Non-Contributing Resources may also be listed
individually as Historic Landmarks, if their importance or period of
significance is different from the Historic District’s.
Support
The most successful Historic Districts are those that choose to
become one, rather than have it imposed on them. In Torrance,
all owners in a Historic District must be in support to establish a
Historic District. This is a high bar, and will need active effort from
property owners interested in becoming a Historic District to
discuss with and educate other owners. Some may feel their rights
as owners are limited by the required project review, even though
the Torrance Tract Overlay Zone already requires review for many
Figure 22: Two examples of streets in the Torrance Tract that have a consistent, cohesive character, as seenin the building scale, shapes, styles, and setbacks from the street.
May 2018 - 36 - Torrance Tract Final Historic Preservation Plan
properties. The preservation review that comes with Historic
District designation assures owners that the neighborhood they
bought into will not change so drastically from what attracted them
to it in the first place. It is this certainty that has brought stability to
Historic Districts and often led to higher property values as owners
feel comfortable investing in improvements.
CONCENTRATIONS OF CONTRIBUTING
RESOURCES FOR POTENTIAL HISTORIC
DISTRICTS
Some select areas within the Torrance Tract may be better suited
to be Historic Districts than others. Areas with fewer changes or
new buildings, and that are more unified with similar buildings from
a defined period would be good candidates to consider for
designation. The 2014 Olmsted Tract Survey helped to identify
where some of those concentrations are located (Figure 24).
Additional research may find that more districts with different
periods of significance are appropriate for certain areas.
Within these concentration areas, smaller, discreet historic
districts may be formed (Figure 25). There are no specific size
requirements for historic districts—large or small—but some
things to consider include:
Consistency in
o Size and scale of the houses;
o Setbacks from the street and between the
houses;
o Location (or lack) of curb cuts and driveways;
o Landscaping like street tree patterns
Consistency of architectural style is not required. Adjacent
houses (or Contributing Resources) of different styles can
still be good candidates for Historic Districts if they are
tied together by several of the above neighborhood
features (Figure 23).
Where these physical features change can signal a
possible boundary line.
o Physical barriers that prevent areas from relating
to each other, such as railroad tracks or major
streets, etc. are good boundary lines.
o Look at both sides of the street when drawing
potential boundaries.
In cases where the streetscapes have not changed
significantly, yet the buildings have been altered like with
May 2018 - 37 - Torrance Tract Final Historic Preservation Plan
replacement windows and doors, review if the original
scale, massing, exterior siding or cladding, and other
distinct architectural features are still present.
Large districts may have a difficult time meeting the
integrity requirement of at least 66% or more Contributing
Resources within its boundaries, plus the 100% owner
support requirement. Smaller districts that exclude Non-
Contributing Resources at the edges usually have a
stronger sense of historic character.
Most historic districts will have some Non-Contributing
Resources; they just should not make up more than a
third or 33% of the properties within the district’s
boundaries (Figure 24 & 25).
Districts that have fewer than ten Contributing Resources
may be appropriate when not enough intact resources are
in an area or if owner support is an issue.
Figure 23: An area with different styles of houses but other unifying features, such as consistent setbacks and scale of the buildings, could still be a historic district.
May 2018 - 38 - Torrance Tract Final Historic Preservation Plan
Figure 24: High concentrations of historic resources from 2014 Olmsted Tract Survey are within the grey lines.
May 2018 - 39 - Torrance Tract Final Historic Preservation Plan
Figure 25: Smaller groupings of historic resources from 2014 Olmsted Tract Survey are within the dotted lines. The blue dots mark the last remaining worker housing designed by Irving Gill.
May 2018 - 40 - Torrance Tract Final Historic Preservation Plan
THEMATIC HISTORIC DISTRICTS
Usually, a historic district in a neighborhood is a geographic
concentration of buildings or features that are linked historically or
visually in a specific area. Geographic Historic Districts will have
Contributing and Non-Contributing Resources within a physical
boundary, but the Contributing Resource should outweigh the
Non-Contributing Resources.
The Torrance Register also offers an option to designate Thematic
Historic Districts. A Thematic Historic District is a collection of
buildings or features related by architectural, historic, or cultural
themes but not in the same geographic area. For example, the
buildings designed by Irving Gill remaining in Torrance may be
part of a Thematic District; any house that was designed by Gill
and has enough integrity could be designated as part of that
Thematic District, even if the houses are not adjacent to each
other. In Thematic Districts, all of the properties would be
Contributing Resources and all would need owner consent to be
included.
Figure 26: Examples of buildings designated under West Hollywood’s thematic Courtyard Historic District.
Case Study: West
Hollywood’s Courtyard
Historic District
The City of West Hollywood
designated a thematic district of 12
courtyard apartment buildings in
1992. Found throughout the city,
these buildings were built in the
1920s to take advantage of
California’s mild climate by
extending interior spaces to the
outdoor. They are defined by a
courtyard surrounded by apartment
units that had direct access to the
shared open space (Figure 26).
May 2018 - 41 - Torrance Tract Final Historic Preservation Plan
5. PROJECT REVIEWS IN HISTORIC DISTRICTS
Once an area becomes a designated historic district, the city and
residents work together to maintain the character of the district.
One way to do this is through a project review process for changes
in the district.
Project review is needed when:
Building permit is required
AND
Any work affecting the exterior of a Historic Landmark or
Contributing Resource, such as alterations, additions,
rehabilitation, restoration, or partial demolition.
Full demolition or relocation of a Historic Landmark or
Contributing Resource.
Exterior work to Non-Contributing Resources is a Historic
District that will be visible from the public right-of-way.
New construction within a Historic District.
Torrance has established different review processes for different
kinds of projects that affect properties in the Torrance Register.
From the simplest to the most complex, they are:
Minor Project Review: Projects that are minor and do not
significantly change the historic character of the Historic
Landmark or Contributing Resource can be reviewed and
approved by CDD staff under the Minor Project Review.
Certificate of Appropriateness: All other projects for
restoration, rehabilitation, additions, and partial
demolition that are not considered a Minor Project are
reviewed by the Historic Preservation Commission
(HPC). HPC will issue a Certificate of Appropriateness if
they find that the project will not adversely affect the
historic character of the Historic Landmark or Historic
District and will be compatible.
Certificate of Demolition: Projects that include a full
demolition of a Historic Landmark or Contributing
Resource are reviewed by HPC for a Certificate of
Demolition. A Certificate of Economic Hardship may also
be required, as well as the preparation of environmental
review documents in accordance with the California
Environmental Quality Act (CEQA).
Projects Exempt
from Review
Some projects do not require historic project review, such as:
Ordinary maintenance and repair work.
Interior work (unless it affects the exterior, like windows).
Plantings that are not character defining.
Stabilizing emergency or hazardous conditions.
Work that does not require a permit.
Generally, projects that are
visible from the public right-of-
way (i.e., from the streets and
sidewalks) and can potentially
change the character of a
historic building will be subject
to review.
May 2018 - 42 - Torrance Tract Final Historic Preservation Plan
MINOR PROJECT REVIEW
Minor Project Review allows the city to review and approve the
most common, minor exterior work that does not change the
building’s appearance. This may include in-kind roof replacement,
repair of exterior siding, and window repair or in-kind replacement
if repair no longer possible. It also includes small additions that
are not visible from the public right-of-way (streets and sidewalks).
Exterior work on Non-Contributing Resources that will be visible
from the street are usually reviewed as Minor Projects, if the work
is not out of character with the historic district.
Examples of Minor Projects
Repair of character-defining features that does not involve
a change of design, appearance, or visibility of the
feature.
Replacement of character-defining features too
deteriorated to repair. Replacement in the historic
material and matching the original details (in kind) is
preferred. Compatible substitute materials that maintain
the historic character in terms of pattern, texture, and
detailing may be considered on a case-by-case basis.
Repair or replacement of roof covering materials, gutters,
and downspouts, provided that the replacement is in kind
or maintains the architectural character of the historic
resource in terms of pattern, texture, and coloration.
Foundation work with no change in appearance.
Chimney repair and retrofit with no change in appearance.
Construction, demolition, or alteration of side, rear, and
front yard fences.
Alterations or removal of landscape features such as
walkways, planter walls, paved areas, and fountains not
identified as character-defining features.
In-kind replacement of historically faithful features that
were previously removed.
Additions and accessory buildings that are one-story, at
the ground floor, not visible from the street, and do not
increase the building’s floor area by more than 25%.
Other minor rehabilitation work as determined by the
Director of CDD.
For Non-Contributing Resources, partial demolitions,
additional stories, and additions that increase the
building’s floor area by more than 25%.
Character-Defining
Features
Character-defining features
are the essential physical
features that enable a historic
property to convey its
significance. They are usually
those elements or
architectural components that
establish the visual character
of the property. They should
be preserved.
Typical character-defining
features include:
Building shape and form
Orientation
Number of stories or
height characteristic
Floor plan or
configuration
Roof forms and materials
Relationship to street and
surrounding buildings
Exterior cladding or finish
Fenestration (window and
door) pattern
Distinct architectural
features, such as
chimneys, porches,
balconies, etc.
Decorative details, like
brackets, railings, arches,
window/door surrounds,
etc.
Landscape features and
support structures/
ancillary buildings
May 2018 - 43 - Torrance Tract Final Historic Preservation Plan
Minor Project Review Process and Findings
CDD staff uses the Secretary of the Interior’s Standards for the
Treatment of Historic Properties (SOI Standards) in Minor Project
reviews. HPC may also adopt other design guidance for use by
CDD staff in reviewing and approving Minor Projects.
If the staff finds the project complies with the SOI Standards or the
adopted guidelines and does not change the historic character of
the building, then the project can receive approvals from a historic
preservation standpoint. The staff could also approve in part, in
full, or with conditions and modifications. Project applicants can
revise and resubmit projects based on comments from staff.
Once finalized, CDD staff will notify HPC about Minor Project
review decisions, which are appealable to HPC within 15 days of
the decision.
If CDD staff finds a project does not meet the SOI Standards or
would like input from HPC, the project can be referred to HPC for
a public hearing.
Case Study: Preservation Approach to Wood Windows
Wood windows are one of the main character-defining features of early-twentieth-century houses.
They were often made of old-growth wood with simple to elaborate profiles and sometimes highly
decorative surrounds or details. They are one of the tangible architectural elements that help to date
a building to a certain period. Losing original wood windows can drastically change a building’s
appearance and feeling.
The best preservation approach is to retain and repair the wood windows. Common problems can
usually be repaired: Double-hung windows that no longer stay open can have their balancing weights
re-roped; specific pieces that have dry rot can be replaced; drafty windows can be weather-stripped
and the panes re-puttied. In major rehabilitations, windows can be removed and reconditioned to last
another 50 to 80 years (with proper maintenance).
If windows have deteriorated to the point that replacement is needed, the first options should be to
replace them in kind, meaning in the same wood material and with the same pattern, configuration,
operation, and details. If the same material is not possible, then another compatible material can be
considered, but only after the above repair and in-kind replacement options have been explored.
Although replacing wood windows seems like an easy way to update a house and be energy
conscious, the preservation approach—repair first and replace only if needed—can cost less, provide
greater lasting value, be less disruptive, reduce waste, and retain the house’s historic character for
the next generation to enjoy.
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MINOR PROJECT REVIEW PROCESS
Application is filed with CDD and reviewed for completeness.
Does proposed project qualify as a Minor Project?
Yes
CDD staff takes action to approve or conditionally approve in full or in part
Application shall go to HPC for a Certificate of Appropriateness review.
CDD decision may be appealed to HPC within 15 days of issuance.
No
Is proposed work consistent with SOI Standards and/or adopted review
guidelines?
Yes
Incomplete application is returned for additional information or revision.
Applicant can revise application based on review comments.
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CERTIFICATE OF APPROPRIATENESS (C OF A)
For larger projects that do not meet the definition of a Minor
Project, a Certificate of Appropriateness (CofA) will be needed.
This usually is for major work that affects the exterior of Historic
Landmarks and Contributing Resources, such as alterations,
rehabilitations, larger and/or visible additions, partial demolitions,
reconstruction, and relocation. Work on Non-Contributing
Resources that are highly visible or have the potential to affect the
Historic District’s character may also undergo a CofA review, as
will new construction within a Historic District, including those
replacing Non-Contributing Resources and second units or
accessory buildings in some cases.
Examples of Projects Requiring Certificate of
Appropriateness
Common types of projects that will require a CofA include, but are
not limited to:
Changing the roof line or historic roof cladding material to
a different material.
Changing the exterior cladding material to a different
material, including painting previously unpainted brick or
concrete.
Replacing historic windows with ones that are not the
same in size, configuration, material, proportions, etc.
Removing or demolishing character-defining features,
such as chimneys, porches, towers, etc.
Adding, removing, or relocating window or door openings
on the front or street-facing façades.
Installing features on the roof that are visible from the
public right-of-way (mechanical equipment, skylights,
antennas, etc.).
Additions that add more than 25% of the existing floor
area.
Additions that are visible from the public right-of-way.
Additions that add height or stories.
Demolishing historic garage or accessory structures that
are character-defining.
Second units or accessory dwelling units.
Other exterior work that can change the building’s
character.
For Non-Contributing Resources, large additions, adding
more stories or a second unit, and other work that can be
out of character with the Historic District.
Tips for Submitting
Projects for Review
Meet with CDD early to
discuss your plans; they
can provide some general
comments and guidance on
what type of review is most
appropriate.
Review the SOI Standards
and Guidelines for
Rehabilitation online to
understand what
approaches are or are not
SOI Standards-compliant.
Minor project review is
usually the fastest route to
getting a project approved,
but some back and forth
may be needed before a
SOI Standards-compliant
project is accepted.
Include photographs of the
current building and where
work is proposed, along
with the architectural plans.
Views from the sidewalk or
across the street are helpful
too.
Consider engaging a
historic preservation
professional to assist with
your project. Historic
architects and those with
experience using the SOI
Standards can design
projects with a preservation
mindset and avoid
surprises later on.
May 2018 - 46 - Torrance Tract Final Historic Preservation Plan
Certificate of Appropriateness Process and Findings
If CDD staff determines that a proposed project does not meet the
definition of a Minor Project, the staff will schedule the application
for review at an HPC hearing. HPC will review the project, taking
into consideration several factors. Mainly, they are looking to see
how the proposed project will affect the Historic Landmark,
Contributing Resource, and/or Historic District. They are also
considering if the changes proposed are appropriate for the
historic materials and character of the building and district.
HPC will use the SOI Standards or other adopted guidelines to
guide their review. They can also refer to available design and
technical recommendations from the National Park Service, such
as the SOI Guidelines for the Preserving, Rehabilitating,
Restoring, and Reconstructing Historic Buildings, Preservation
Briefs, Guidelines for the Treatment of Cultural Landscapes, etc.
See the appendix for a partial list of preservation resources.
To approve a project and issue a CofA, HPC must find that the
project meets the adopted review standards, or the SOI Standards
if no other standards have been adopted. HPC can approve in full,
in part, or with conditions and modifications. If the project does
strictly comply with the SOI Standards, but still protects and
preserves the historic character of the Historic Landmark or
Historic District, then HPC can issue the CofA. For projects related
to Non-Contributing Resources, HPC should find that the
requirements for review have been met.
Decisions by HPC are final, but they can be appealed to the City
Council within 15 days of the decision.
SOI Guidelines
The Secretary of the Interior’s
Guidelines for the Treatment
of Historic Properties (SOI
Guidelines) offer general
design and technical
recommendations for
applying the SOI Standards
to a specific historic property.
Together, they offer flexibility
to update buildings and make
reasonable changes while
respecting the historic design,
materials, feeling, and
character of the building.
The SOI Guidelines outline a
general hierarchical process
for preservation projects:
1. Identify, retain, and
preserve character-
defining features and
significant spaces;
2. Protect and maintain as
much as possible;
3. Repair when needed in
ways that are appropriate
and sensitive to the
historic materials;
4. Only when repair is not
possible then consider
replacing in kind, i.e.,
matching in configuration
design, materials, details,
finish, etc. Compatible
substitute materials may
be considered at times.
The SOI Guidelines also
provide specific do’s and
don’ts for certain materials
and features.
May 2018 - 47 - Torrance Tract Final Historic Preservation Plan
CERTIFICATE OF APPROPRIATENESS REVIEW PROCESS
Application is filed with CDD and reviewed for completeness.
Does proposed project qualify as a Minor Project?
Application shall go to HPC for a Certificate of Appropriateness review.
No
HPC reviews using SOI Standards and/or adopted review guidelines and takes action to approve, conditionally
approve, or deny the application.
Approve
Certificate of Appropriateness is issued.
DenyCertificate of Appropriateness is not
issued
HPC decision may be appealed to City Council within 15 days of issuance.
Application is scheduled for review at next available HPC meeting. Notice will
be publicly posted.
Application can be reviewed as a Minor Project.
Yes
Incomplete application is returned for additional information or revision.
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CERTIFICATE OF DEMOLITION
Once designated, the demolition of a Historic Landmark or
Contributing Resource in a Historic District should be a rare event.
A full or substantial demolition of a designated Historic Landmark
is a permanent loss that cannot be reversed or lessened by
photographs or other documentation. Generally, the demolition of
a Contributing Resource does not automatically result in the
permanent loss of the Historic District, but there are some
instances where that may occur, especially if there are only a few
Contributing Resources in the district.
Demolition of a historic resource is strongly discouraged, but there
may be certain situations in which the option of demolition must
be explored. A Certificate of Demolition (CofD) will be needed for
full demolitions.
Certificate of Demolition Process and Findings
If CDD staff determines an application will require a CofD, the staff
will inform the owners and request additional items, including:
An initial study under the California Environmental Quality
Act (CEQA);
An application for a Certificate of Economic Hardship; and
An application for a Certificate of Appropriateness for the
replacement project, if in a Historic District.
CEQA is a state environmental law that considers the loss of a
historic resource to be an impact on the environment. The initial
study for CEQA review is to understand whether the demolition
will potentially have a significant adverse effect on a historic
resource. If so, an Environmental Impact Report (EIR) to explore
preservation alternatives may be required.
The Certificate of Economic Hardship is to consider whether
denying the CofD would create an undue economic hardship on
the owner. To understand that, financial and technical information
related to repair, rehabilitation, relocation, and other alternatives
to demolition may be requested.
In the case of a Contributing Resource in a Historic District, HPC
will also review the proposed replacement and consider its
compatibility with the district. Replacement projects for Historic
Landmarks are not subject to project review by HPC, but HPC
may consider the merits of the replacement project in hearing the
CofD application.
Demolition: Full vs.
Partial
The Torrance Historic
Preservation Ordinance
defines demolitions as full or
partial:
Full Demolition: Demolition
that involves 50% or more of
the exterior walls area or
building floor area.
Partial Demolition: Demolition
that involves less than 50% of
the exterior wall area and
building floor area of the
primary building, and
demolition of other features
on the property.
Demolition of garages or
accessory structures would
be reviewed as partial
demolition.
Full demolitions of Historic
Landmarks and Contributing
Resources will require a
Certificate of Demolition. Full
demolition of a Non-
Contributing Resource does
not require historic review,
but the replacement project
will require a CofA.
Partial demolitions of
Landmarks and Contributing
Resources will require a
CofA.
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Both the initial study and the information needed for a Certificate
of Economic Hardship may take months to complete. They are
intended to explore other options to demolition to avoid the loss of
a historic resource. CDD will schedule the CofD application for an
HPC hearing once all of the requested information has been
accepted and deemed complete.
At the hearing, HPC will review the project, taking into
consideration several factors including, but not limited to
The importance of the Historic Landmark or Contributing
Resource to the City of Torrance.
Its historic, architectural, or cultural significance.
Reasons for the demolition.
Feasibility to repair or adaptively reuse the building.
Economic hardship.
Merits of the replacement project (in a Historic District).
Options to mitigate the loss.
HPC also hears the CofA for a replacement project (as a new
construction project) at the same time as the CofD in the cases
involving Contributing Resources.
To approve the CofD, HPC must:
Approve the Certificate of Economic Hardship finding that
denial of the CofD will deprive the owner of substantially
all reasonable use of the property;
Make at least two (2) of the following findings:
o The deterioration that is the basis for the
demolition is not the result of the owner’s failure
to maintain the property.
o There is a compelling public interest that justifies
demolition.
o All reasonable efforts to restore, rehabilitate, or
relocate the building have been exhausted.
o Renovation would require such extensive
alterations that would render the building no
longer historic.
o Demolishing the Contributing Resource will not
detrimentally change, destroy, or adversely affect
the historic character or value of the Historic
District.
Decisions by HPC are final, but they can be appealed to the City Council within 15 days of the decision.
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CERTIFICATE OF DEMOLITION PROCESS FOR HISTORIC LANDMARKS & CONTRIBUTING RESOURCES IN HISTORIC DISTRICTS
Yes
Certificate of Demolition is issued.
No HPC denies Certificate of Demolition.
HPC decision may be appealed to City Council within 15 days of
issuance.
Once all received and deemed complete, application is scheduled for review at next available HPC meeting. Notice will be publicly
posted.
Applicant will be requested to provide: - An initial study in accordance with CEQA - An application for Certificate of Economic Hardship - An application for Certificate of Appropriateness for a
replacement project, if in Historic District
Does denial of CofD substantially deprive owner of all reasonable use?
Yes
Can HPC make at least two of the required findings?
Yes
HPC makes findings to approve Certificate of Economic Hardship
YesHas HPC approved a CofA for a
replacement project, if in a Historic District?
No
Application is filed with CDD and reviewed for completeness.
Is a Certificate of Demolition (CofD) required?
Incomplete application is returned for additional information or revision.
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CERTIFICATE OF ECONOMIC HARDSHIP
As with the Certificate of Demolition, HPC may issue a Certificate
of Economic Hardship if denial of the CofA creates an undue
economic hardship on the owner. Economic hardship is not
merely that the preservation requirements will cost more, or that
the property’s highest value use is not available. Evidence must
be provided to the satisfaction of HPC that there would be a
substantial burden on the owner. This can be because a
reasonable rate of return cannot be achieved for an income-
producing property, that the work is not economically reasonable,
practical, or viable, or that a legal “taking” would occur.
HPC may request cost estimates, technical reports, financial data,
and other information to make their decision.
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6. DESIGN CONSIDERATIONS FOR PROJECTS IN HISTORIC DISTRICTS
In reviewing projects in historic districts, CDD staff and the Historic
Preservation Commission may consider the following factors
when determining if the proposed project meets the review
standards or is compatible with the historic resource.
Massing, including building shape form, height, and the
nature of the roof line (Figures 27 & 28)
Proportions between the height of a building and its width;
Nature of the open space around buildings, including
extent of setbacks, the existence of side yards, their sizes,
continuity of such spaces along the street, and the extent
of paving;
Nature of openings in the façade (windows and doors)—
their locations, size, proportions, and hierarchy;
Type of roof, including cladding material;
Nature of projections from the building, such as porches
and balconies;
Nature of the architectural details, and the predominate
architectural style (if any);
Nature of the materials;
Color;
Texture;
Details of ornamentation;
Signs; and
Other character-defining features.
PROJECTS INVOLVING PARTIAL DEMOLITION
When considering projects that involve partial demolitions, HPC
may look at whether character-defining features will be affected or
removed. This may include including garages, accessory
structures, and landscape features as well as the building’s
features. The visibility of the change from the street and the effect
of the entire proposed project, partial demolitions, and any new
construction or additions, will also be factors to consider. If located
within a Historic District, the effect of the project to that Historic
District will also be reviewed.
NEW CONSTRUCTION IN HISTORIC DISTRICTS
New buildings will be constructed in Historic Districts from time to
time. They may be built on vacant lots or to replace a Non-
Contributing Resource. They may also be a second unit that is
May 2018 - 54 - Torrance Tract Final Historic Preservation Plan
allowed by zoning on the lot, or in very rare situations, a new
building replacing a Contributing Resource in the district.
Regardless of the reason, the new construction will be reviewed
for compatibility with the scale, massing, setbacks, and where
appropriate, the original style, of the Historic District’s Contributing
Resources. This usually includes:
A. The height, width, and length of the new building
compared to surrounding Contributing Resources;
B. Floor heights, fenestration patterns, proportions, solid-to-
void ratios, and other the elements and details;
C. Exterior materials and treatments; and
D. Other relevant features of the Historic District and its
Contributing Resources.
The goal is to ensure that new buildings will maintain the overall
character of a Historic District.
Figure 27: Second-story addition setback from the
front, with roofline and materials that take their cues
from the original house and are in keeping with its
Craftsman style.
Figure 28: While setback, the design concept for
this second-story addition is unclear. The narrow
windows, horizontal siding, and flat roofline do not
relate to the original building design.
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THREE COMMON PROJECTS IN THE TORRANCE
TRACT
To demonstrate how project reviews in a historic district seek to
emphasize preserving the district’s historic character, three
project types common in the Torrance Tract are discussed below.
1. Creating an Addition to a Single-Family House;
2. Adding an Accessory Dwelling Unit to a lot zoned R-1,
Single-Family Residences; and
3. Developing Two Condominiums to a lot zoned R-2, Two-
Family Residences.
In each of these three cases, HPC will be looking for compliance
with the SOI Standards. The most relevant are Standard 2, 5, 9,
and 10 (refer to Appendix E). In general, these SOI Standards
require that:
The new addition or unit does not alter the building’s
historic character (Standard 2);
Character-defining features and historic materials are not
sacrificed to allow the new addition or unit (Standard 5);
The new addition or unit is both compatible AND
differentiated from the historic (Standard 9); and
The new addition is reversible, so if removed in the future,
the essential form and integrity of the historic building
remains (Standard 10).
Being compatible and differentiated under Standard 9 requires
balance; one without the other may not meet the SOI Standards.
New construction that is identical to the original creates a false
sense of historic development. New construction that is too
different can distract from or overwhelm the historic. Typically, the
design of the new construction should reference the historic
building in terms of scale, massing, proportion, roofline,
fenestration, exterior cladding, and other details. However, to
avoid too closely matching the historic building and giving a false
sense of history, consider simplifying the details, using
contemporary construction methods or compatible materials, or
slightly adjusting proportions or patterns.
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1. Creating an Addition to a Single-Family House
In a historic district, small additions that meet certain requirements
can be approved by CDD staff. Larger additions—those that
increase the house’s floor areas by more than 25%--or additions
that are visible from the public right-of-way (streets and
sidewalks), like second-story or side yard additions, will be
reviewed by HPC.
Some recommendations to keep in mind:
The historic building should remain the main focus of the
property. Additions should be secondary to the main,
historic building and not compete with it for attention.
Typically, a one-story addition located at the rear of the
parcel will accomplish this (Figure 27).
Additions should not be at the front of the buildings
(Figure 28). The front, street-facing façade is usually a
key character-defining feature and one of the main ways
a building relates to the other properties in a historic
district. Additions to the front can also alter the
relationship of the building to the street, which is often
consistent in the historic district and gives the district its
character.
Figure 27. One-story additions at the rear that are not visible from the street are preferred.
Figure 28. Front additions are not recommended in historic districts.
Second story additions should be set as far back as
possible, so as not to be readily visible from the street.
For some smaller buildings, a one-story connector placed
between the one and two-story volumes (referred to as a
“hyphen”) helps avoid overwhelming the main, historic
building (Figure 29). The roofline of the second story
addition should also take cues from the historic building,
May 2018 - 57 - Torrance Tract Final Historic Preservation Plan
whether in roof slope, cladding materials, or other
detailing (Figure 30).
Side additions should also be set back from the front
façade building plane, so as not to compete with the
historic building or be confused for an original component.
The roofline should also take its cue from the historic
building, but have a break or visual separation.
Depending on lot size, building size, building design, and
corner lot conditions, an appropriate addition for one site
may not be an appropriate addition for another site.
Figure 29. Two-story additions should be set back from the main building and be compatible in design, rooflines, materials, and detailing.
Figure 30. Two-story additions that contrast too drastically with the main building, or overwhelm the main, historic building should be avoided.
Figure 31. The two-story addition is minimally visible from the street and is stepped back from the side of the front historic building.
Figure 32. Although the two-story addition is set back, its massing overwhelms the front historic building. A roofline that is lower and slopes back from the street, similar to the front building, along with a side step back to the addition would be more appropriate.
May 2018 - 58 - Torrance Tract Final Historic Preservation Plan
2. Adding an Accessory Dwelling Unit to an R-1 Lot
Torrance has recently revised its ordinance governing Accessory
Dwelling Units (ADU) to meet the requirements of state law.13 Also
known as second units or “granny flats,” state laws require cities
to allow ADUs to be added to single-family residences provided
they meet certain requirements, including that the unit is not to be
sold separately or used as a short-term rental. Torrance’s revised
ordinance outlined the development standards for ADUs, which
vary if the unit is within an existing building, if it is newly built and
attached to an existing building, or if it is built as a detached
building. Any ADUs that are not within those limits would need to
be reviewed and approved by the City Planning Commission.
While an ADU that meets Torrance’s revised ordinance is allowed
by right, those that are in a Historic District are still subject to
design review to avoid negatively impacting the district. On the
other hand, being in a Historic District also offers relief with more
flexible parking requirements.
Some things to keep in mind when planning ADUs in a Historic
District:
ADUs in a Historic District can take advantage of the state
exemption from parking requirements—an incentive for
historic districts.
ADUs should generally be sized appropriately to the main
building, placed at the rear, and minimally visible from the
street.
ADUs on properties with Contributing Resources should
be architecturally compatible with the historic building in
terms of architectural vocabulary, cladding materials,
colors, exterior finishes, and landscaping, among other
factors.
Per Torrance’s revised ordinance on ADUs (approved in
April 2017), ADUs in the form of additions to a
Contributing Resources are only allowed if they do not
add more than 30% to the existing living area (Figure 33).
While new detached ADUs can be built up to 1,200
square feet (per Torrance’s ADU ordinance), the floor
area ratio (FAR), lot coverage, and open space
13 Senate Bill 1069 and Assembly Bill 2299 from 2016 are the relevant state laws that triggered the revisions.
May 2018 - 59 - Torrance Tract Final Historic Preservation Plan
requirements for smaller lots may not allow units that
large (Figure 34).
Avoid demolishing the historic garage or accessory
structures to accommodate an ADU. Consider converting
or expanding the garage for the ADU, but keep the garage
doors so it continues to read as a garage.
Figure 33. An attached ADU that adds no more than 25% of a main, historic building’s area should follow the same guidance as for additions.
Figure 34. Although detached ADUs up to 1,200 square feet may be allowed, smaller lots may not accommodate ADUs of that size because other requirements for FAR, lot coverage, and open space still need to be met.
3. Developing Two Condominiums on an R-2 lot
Different from ADUs are the R-2 areas in the Torrance Tract that
allow two separate units to be built. Here, the second unit is not
subordinate to a primary residence; both are essentially primary
residences. An increasingly popular approach in recent years has
been to create two condominium units on R-2 zoned lots where
some of the lot is shared common areas but each unit is sold
separately (ADUs cannot be sold separately from the primary
residence). To maximize the land and value of the condominium
units, new two-story townhouses are built. This has often resulted
in the demolition of the existing building, typically an older,
smaller, one-story single-family house, and the diminishing of a
cohesive neighborhood character.
In a historic district, the ability to have two units in an R-2 lot is not
lost. The approach would be to keep the main building, if it has
been identified as a Contributing Resource, and construct the
second unit in the rear (Figure 35). As the rear unit is usually less
visible from the street, and therefore would have less impact to
the character of the historic district, review in a historic district
would be similar to reviewing a large addition (Figure 36 through
Figure 38). To encourage keeping the Contributing Resource, the
May 2018 - 60 - Torrance Tract Final Historic Preservation Plan
city may consider modifying some development standards, such
as setback and parking design requirements.
Figure 35. A second unit in an R-2 zone can be built while keeping the historic Contributing Resource at the front.
Figure 36. The second unit should be compatible in design with the historic Contributing Resource and avoid overwhelming the front building.
Figure 37. Example of compatible second unit added to the rear of an older (non-historic) house.
Figure 38. The roofline of the second unit is minimally visible from the street.
Figure 39. Another example of compatible second unit added to the rear of an R-2 lot. The roofline takes its cues from the front building but avoids matching too exactly.
Figure 40. From the sidewalk, the second unit is not visible. This example is in the Small Lot, Low Medium Density Overlay Zone in the Torrance Tract.
May 2018 - 61 - Torrance Tract Final Historic Preservation Plan
In the case where a two-condominium development replaces a
Non-Contributing Resource in a historic district, the new
development would also be subject to review by HPC. Here, the
review would center on compatibility of the new development with
the historic district.
Some points to keep in mind:
In terms of site compatibility, avoid placing the garage on
the front, street-facing side where a curb cut would be
needed; Torrance Tract streets typically do not have curb
cuts and garages historically have been facing the alleys.
Another site compatibility feature may also mean keeping
the existing setback that is consistent along the block.
In terms of the buildings’ scale and massing, the main,
historic building may not be required to remain a single
story, though the design should consider a massing that
steps back the second story.
The design should consider a roofline that is pitched
rather than flat, if that is a common feature within the
neighborhood context. The pitch could also follow the
same proportions or slope to minimize the appearance.
Matching the style of the surrounding buildings is also not
required; in historic districts, often many different styles
are found.
o However, the new front building should take cues
from its neighbors, in terms of symmetry or
asymmetry, volumes and wall planes, fenestration
pattern, and use of materials.
o For instance, many traditional designs have more
solid walls than window or door openings (wall to
void ratio), and those openings are not oversized. A
more modern building with walls of glass or large
picture windows may not be compatible.
Where a new development seeks to build in a traditional
style, consider the proportions, craftsmanship, and
materials that also define these styles—the character-
defining features.
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7. RECOMMENDATIONS
To further support historic preservation in the Torrance Tract, the
following are recommended:
Encourage the Historical Society and interested owners
to gather support from neighbors and initiate district
nominations.
Update the historic context for Torrance Tract to identify
the development patterns and any significant individuals,
as well as to establish eligibility criteria for significance
and integrity to help guide HPC.
Consider establishing thematic districts.
Continue to develop the Mills Act program, with
application process.
Develop attractive incentives that protect the main (front),
historic buildings but allows flexibility for new additions,
accessory dwelling units, or second unit (as allowed) at
the rear and utilizes alleys to protect the historic street
pattern.
Develop educational and marketing materials promoting
the city’s historic preservation program.
Consider surveying or creating districts in other parts of
Torrance, outside the Torrance Tract.
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8. SOURCES CITED
California Office of Historic Preservation. Technical Assistant
Series No. 7, How to Nominate a Resource to the California Register of Historic Resources. Sacramento: California Office of State Publishing, 2001.
Dalton, Peggy Coleman. Torrance: A City for Today. USA:
Windsor Publications, 1990. Nakada+Associates. “Olmsted Tract; Torrance California 2011-
2013 Survey of Historic Resources.” “Rehabilitation as a Treatment.” National Park Service Technical
Preservation Services, U.S. Department of the Interior. Accessed January 29, 2017, https://www.nps.gov/tps/standards/four-treatments/treatment-rehabilitation.htm.
“The Secretary of the Interior’s Standards and Guidelines for the
Treatment of Historic Properties.” National Park Service Technical Preservation Services, U.S. Department of the Interior. Accessed January 29, 2017, https://www.nps.gov/tps/standards.htm.
Thomas D. Campbell & Company. Torrance: The Modern
Industrial City. Los Angeles: Thomas D. Campbell & Company, 1913.
May 2018 - 64 - Torrance Tract Final Historic Preservation Plan
9. APPENDIX
A. 2014 OLMSTED TRACT SURVEY
B. RELEVANT ORDINANCES
C. NATIONAL AND STATE PRESERVATION
PROGRAMS
D. SECRETARY OF THE INTERIOR’S
STANDARDS FOR THE TREATMENT OF
HISTORIC PROPERTIES
E. CALIFORNIA ENVIRONMENTAL QUALITY
ACT AND HISTORIC PRESERVATION
F. PRESERVATION RESOURCES
G. ABBREVIATIONS AND NOTES