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Passive House

Passive House is both a green building rating system for deep energy efficiency and a philosophy of how to build good buildings. Even when we are not pursuing Passive House certification we embed the principles in our design work. These include optimized continuous insulation, air sealed construction, high-performance windows and doors, detailing for minimal thermal bridging, and balanced energy recovery ventilation paired with high efficiency heating and cooling systems.  The results of this integrated approach are ultra-low energy use, high indoor air quality, thermal comfort, acoustic comfort, and increased thermal resilience.

Featured Passive House 

Muhlenberg Fahy Commons

Deep green Living Building Challenge Core Certified (first in the world!) + LEED Platinum + Phius CORE Certified multi-purpose building at the campus woodland edge

Fishtown Passive House

Cost-efficient + energy-efficient Passive House

Great Oaks – Building 150

Net-zero energy multi-family Passive House

Twin Pines House

*UNDER CONSTRUCTION* sustainable features from ground to sky

Valley View House

*UNDER CONSTRUCTION* Energy efficient conversion of split level to age-in-place home

Allen Residence

Energy-efficient home with off-the-shelf products and systems

Silvergreen Residences

Cutting-edge green in a historic package certified for PHIUS Net-Zero

Northern Liberties Passive House

Cost-efficient + energy-efficient urban Passive House

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