Case studies - Living Roofs in Integrated Urban Water Systems - page 142

5.2 CASE STUDIES

5.2.1 Single lot: VanDusen Botanical Garden Visitors Centre, Vancouver,
BC, Canada

Table 5.1 Project speciications: VanDusen Botanical Gardens Visitors Centre

Location Vancouver, BC, Canada

Completion 2011
Project area 17,000 m 2 hectares (Visitor Centre and Site Restoration)
Project budget $21.9 million CA$
Construction cost $14.9 million CA$
Building footprint 1,765 m 2
Roof area • Living Roof - 1,486 m 2
• Blue Roof (water collection) - 371 m 2
Awards/recognition • Lt. Governor Award
• Living Building Challenge 2.1 and LEED-NC  Platinum still pending
Consultant team (selected) • Landscape Architect: Sharp & Diamond Landscape Architecture Inc in collaboration
with Cornelia Hahn Oberlander, Landscape Architect
• Architect: Busby, Perkins + Will
• Structural Engineers: Fast and Epp
• Ecology: Raincoast
• Lighting Design: Total Lighting Solutions

Client/owner • Vancouver Board of Parks and Recreation

• VanDusen Botanical Garden

Rain Rain

Rooftop water
collection

Overlow
to rockpit

Stormwater
control
measure

Washroom

Potable
cold water

Groundwater
recharge

Rainwater
cistern

Water pump

Overlow to city sewer

Transfer of treated
water to swale/raingarden

Bioreactor
Black water treatment

LEGEND

Rainwater Waste water

Recycle of rainwater

Groundwater recharge

Cold water supply from city

Figure 5.1
VanDusen Botanical Gardens and Visitor Centre: a holistic stormwater management system diagram (Figure based on
drawing by Perkins and Will Architects)