general policy for higher buildings · at noon, shadow falls mostly north over the st paul’s site...

18 1157 Burrard Street | Rezoning Application | December 21st 2018

PROPOSAL

committed.Further,thecornerplazaprovidesawelcominggatewaytoDavieVillageandrepresentsanimportantadditiontothearea’sopenspacenetwork.

Mitigate adverse microclimate effects

TheprojectteamhasmetwithanEnvironmentalEngineeringteamtoinitiateworkonmitigationofanymicrocli-mateeffects.OwingtorelativelylowwindsinVancouver,themicroclimateeffectsareanticipatedtobemodest,andmitigatedbystrategicallylocatedcanopiesandsimilarfeatures.

Minimize Shadowing and View Impacts

TheprojectlocationonthenorthsideofDavieStreetandWestsideofBurrardStreetmeansthatshadowimpactsaremodestandmoverapidlyacrossDavieStreetintheearly-midmorning.Atnoon,shadowfallsmostlynorthovertheStPaul’ssite(StPaul’sHospitalisanticipatedtomovetoFalseCreekFlatsinthewindowofcompletionoftheproject),thenoverBurrardStreetonlyinlateafternoon.NoshadowfallsonNelsonParkorotherparklandorpublicopenspaceinthevicinitybetweentheSpringandAutumnequinox.

PublicviewimpactsaremodestowingtotheslenderbuildingprofileasseencomingupBurrardStreet.WithrespecttotheB1and12.1ViewCones,theprojectadjoinsthemastheypassnorthacrosstheedgesofthesite.ForViewCone3.2.1,theprojectpunctuationproposestocomplementtheskylineasviewedfromQueenElizabethPark.

Giventhesmallfloorplatesizeatthebuilding’supperlevelstheprivateviewimpactstootherbuildingsintheneighbourhoodaremodest.Typically,buildingslookingnorthtowardstheDowntownwillsituate1157Burrardwithinabackdropofotherdowntowntowers.BuildingslookingsouthandeastwillseethetowersofYaletowninthebackground.

1157 Burrard: General Policy for Higher Buildings

Establish a significant and recognizable new benchmark for architectural creativity and excellence

Theprojectproposesanewbenchmarkforsiteandcity-specificarchitecturalcreativityandexcellencethroughseveraldistinctivemeasures.Thewestfaçadeisproposedasadynamicever-changingmosaicrespondingtosolarmovement.Inthemorningwhennodirectsunfallsontheelevation,thefaçadeformsasleekglassenvelopeani-matedbybalconies.Asthesuncomesaroundtothesouthandwest,exteriorverticalsolarcontrolblindsstarttoanimatethefaçade,withthesunexposureloweringthemsequentially.Asthesunrotatesfurthertothewest,theblindsgraduallyformaveil,apixilatedabstractionoftheWestcoastlandscapegroundtoseatosky.Asafternoonturnstoevening,theblindsretractonceagaintorevealtheglowingglassenvelopebynight,aslightsilluminatefromtheinside.Theblindshavebothanaestheticandasustainabledesignrole,reducingsolarheatgainandglarefromlowanglewestsun.TheconceptisinspiredbytheElectra,theformerBCHydrobuildingonBurrardStreet.ElectramakesexplicitreferencetotheWestcoastlandscapeinitsdesignandornamentation,amajorinnovationatthetimethetowerwasbuilt.

Inadditiontothedynamicnatureofthewestfaçade--visiblefrombothBurrardStreetandDavieVillage--thebuildingisshapedlikeaflatironasyouapproachtheDowntownalongBurrardStreet.Consequently,thebuild-ingisexceptionallyslendercomparedtoothertowers.Thebalconiesalongtheleadingedgefurtheranimatethisimpression,byfacetingtowardsthewestasthetowerrises.ThisshapeformsaninvitationtowardsDavieVillageandtheWestEndasthetoweraddressesceremonialBurrardStreet.

Atgrade,thecornerplazaprovidesapublicdestination,welcomingvisitorstoDavieVillage.Thebuildingcanopygathersrainwateranddirectsittoasmallsymbolicwetlandatthecorner,providingapleasantplacetogatherandevokingtheWestcoastlandscapeconceptofthebuilding.TheprojectelevatorsofferoutlooktoBurrardStreetinthepodiumandattherooftop,providingspectacularviewsoutforbuildingusers.Attherooftopaviewingplat-formformspartoftheResidentialAmenitywithvistastothefireworksofEnglishBay.

Demonstrate leadership and advances in sustainable design

Theverticalsolarblindsprovidevisibleevidenceofthepassivesustainabledesigncharacterofthebuilding.Whilesolarandglarecontrolisimportantforusercomfortandenergyusereduction,theprojectfeaturesotherpassiveandactivesystemscontributingtoSustainableDesignleadership.Thebuildingenvelopefeatureshighperfor-mancetripleglazinginthepodium,whichalsoprovidesacousticalremediationatthisbusytrafficandnightlifecorner.Todiminishthermalbridging,theterracottafaçadesystemonthelowerlevelsofthebuildingfeaturesexteriorinsulationandintermittentclips—notcontinuousz-girts--tiedbacktotheinteriorwallstructure.Forthesamereason,thebalconiesarewrappedininsulation.Heatingandcoolingareprovidedbyhighperformancefan-coils,linkedtoahigh-efficiencycentralplantutility.Thisisanticipatedtobeageoexchangefield,supplementedbyrooftopandgarageentrylevelheatexchangers.ExtensiveandIntensivegreenroofswillslowdownthemovementofrainwateronthesite.Rainwaterwillthenbegatheredfromrooftopstoacisternandfiltrationtank,providingcleanwaterbacktothecornerplazawetlandandswimmingpool.

Provide a lasting and meaningful legacy including significant community benefits

TheprojectproposesapublicchildDaycarefacilityatthethirdfloor,includingindoorandoutdoorplayandlearn-ingareas.Atthesecondfloor,thededicationofofficespacetoacommunityuseisbeingexploredbutisnot

GENERAL POLICY FOR HIGHER BUILDINGS

14 1157 Burrard Street | Rezoning Application | December 21st 2018

CONTEXT

VIEW CONE PARAMETERS

151157 Burrard Street | Rezoning Application | December 21st, 2018

CONTEXT

VIEW CONE CONFORMITY