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Multi-Family Residential
New Construction
3,200 SF
Philadelphia, PA: Francisville

These two single-family passive rowhomes on the edge of Philadelphia’s Francisville neighborhood maximize the area of their small lots and create a distinct impression against the neutral exteriors of adjacent development. Borrowing from established quilting practices, the blue terracotta cladding of the primary facade is complimented by the materials which weave and bound its edges.

​Row House is intended to be perceived as one building. Windows are sized and placed in response to the interior use on each floor and mirrored to reinforce the exterior expression. The main entry and electric vehicle parking space are tucked strategically under the upper levels to provide protection from the elements. A solar array allows the project to take aim for zero energy use.

Passive George sketch


Targeting Phius CORE 2021 Prescriptive Certification

Building Geometry

Heat Loss Form Factor: 2.22

Window to Wall Ratio: 18%


Performance Metrics

Predicted Energy Use Intensity (pEUI): 3.3 kBtu/sf/yr

Site Energy Use: 23 kBtu/sf/yr

Airtightness (target): 0.04 CFM50/sf envelope area


Building Envelope

Slab On Grade: R-18

Above Grade Walls: R-40 min.

Soffit Above Carport: R-54 min.

Roof: R-67 min.

Windows: U-Value 0.14, SHGC 0.4 approx.


Building Systems

Power / Fuel Source(s): All electric

Renewable Energy: Rooftop solar PV (9.6 kW system size)

Heating & Cooling: VRF heat pump

Ventilation: Energy recovery ventilator

Domestic Hot Water: Heat pump water heater

Appliances: Energy-Star

LED lighting

Low-embodied carbon building envelope

EV-ready carport

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