A+ 2023 · Finalist

Silvergreen

Sanderson Sustainable Design

Bryn Athyn, United States

Year: 2001
Category: Built > Sustainable Multi-Unit Residential Building
Type: Residential
Firm: Sanderson Sustainable Design
Location: Bryn Athyn, United States
Award: A+ 2023 · Finalist

NARRATIVE | Silvergreen is a prefabricated, multifamily, certified Passive House, centered in the National Landmark District of Bryn Athyn PA, blending history, Zero Energy, and Living Building Philosophy with Carbon Smart materials. Conceived by the owner to set an example for her two boys, Silvergreen was built to lead the historic community of Bryn Athyn, PA toward a more sustainable and resilient future. Currently in use as an affordable rental, the lifespan for the building is forecast over three generations for a series of future uses. With the vision to pair history and technology aside experience and workforce education, the design build teams achieved zero energy, redacted carbon, employed non-toxic natural materials, granted morning winter light, anticipated renovations, eased the future installation of solar and electric vehicles, and protected wetlands through on-site stormwater infiltration. PROJECT METRICS | Heating Demand 5.93 kBTU/ft²yr Cooling Demand 2.78 kBTU/ft²yr Peak Heating Load 3.69 BTU/ft²hr Peak Cooling Load 1.57 BTU/ft²hr Zero Source Energy Site Energy 9.57 kBTU/ft²yr Airtightness 0.056 cfm50/ft² EUI 9.57 (-0.52 w/ renewables) HERS Score 57 TEAM | DESIGNER | MANAGER |