Somerset Development Earns PHIUS CORE Passive House Certification for The Faircliff Affordable Housing Project in Washington, DC
Somerset Development's The Faircliff, a 125-unit all-affordable, all-electric multifamily building at 2641 14th Street NW in Washington, DC, has been granted PHIUS CORE 2021 Passive House certification, one of the most rigorous building performance standards in North America, the firm announced in July 2026.
The project was developed in partnership with Jonathan Rose Companies, New Community Partners, and Housing Up. The Faircliff also holds LEED Platinum certification for energy performance, sustainability, and resident well-being.
Project Details and Green Infrastructure
The Faircliff is an all-electric building featuring a 67 kW solar-integrated green roof, 19 EV charging spaces, ENERGY STAR appliances, and building materials selected to reduce environmental impact and support indoor air quality.
The design and construction team included architect Eric Colbert & Associates, engineering firm Staengl Engineering, and general contractor John Moriarty & Associates of Virginia. Achieving PHIUS CORE certification required coordination across design, construction, and commissioning teams to meet standards for energy efficiency, air tightness, and verified performance.
What PHIUS CORE Certification Means for Owners and Residents
PHIUS CORE 2021 is among the most demanding building performance standards in North America, setting requirements for energy use intensity, thermal comfort, and envelope air tightness. For residents, the standard translates into healthier indoor air, quieter living spaces, greater year-round comfort, and lower utility costs — benefits that carry particular weight for cost-burdened households.
For building owners and operators, Passive House performance reduces heating and cooling loads, lowers operating expenses, and improves envelope durability and moisture control. High-performance envelopes also provide more stable interior conditions during grid disruptions or extreme weather events, supporting long-term asset resilience. The combination of PHIUS CORE and LEED Platinum certifications, onsite solar generation, and all-electric systems gives The Faircliff third-party-verified performance metrics that align with growing investor and policy emphasis on energy efficiency and climate resilience in multifamily assets.
Somerset Development's Partnership Model and Mission
Somerset Development Company, founded in 2000, focuses on the development and preservation of affordable housing as well as mixed-income, mixed-use, and market-rate residential properties, with an emphasis on urban revitalization through the redevelopment of distressed properties. The firm's stated mission centers on comprehensive and sustainable community revitalization through partnerships with tenant associations, community organizations, nonprofits, local businesses, and public-sector entities, alongside investment in resident services programs.
The Faircliff reflects that partnership-driven approach. Jonathan Rose Companies, New Community Partners, and Housing Up joined Somerset as co-developers, combining expertise across financing, development, and community programming.
Among affordable multifamily properties, dual Passive House and LEED Platinum certifications paired with onsite solar and EV infrastructure represent a differentiated position. High-performance, low-carbon affordable housing also aligns with municipal climate action plans, which can support entitlements and community relationships in urban infill markets like Washington, DC.
Market Context: Affordable Housing and High-Performance Assets
Multifamily remains one of the more resilient commercial real estate asset classes, with true affordable housing facing structural undersupply in high-cost metros including Washington, DC. Public and mission-driven capital has increasingly favored projects that combine affordability with energy efficiency and climate resilience, including preferential financing, grant programs, and tax credits.
Across the broader commercial real estate market in 2026, investors have placed greater emphasis on assets with clear operational efficiency advantages, durable downside protection, and verifiable ESG credentials. For affordable housing developers, certifications such as PHIUS CORE and LEED Platinum serve as measurable, third-party signals of long-term operating performance — a consideration that has grown in relevance as capital markets have become more selective about asset quality and operational fundamentals.
The Faircliff's completion adds 125 units of certified affordable housing to Washington, DC, with a building envelope and systems designed to reduce both environmental impact and long-term operating costs for residents and owners alike.
Sources
Somerset Development — The Faircliff Passive House News Release (July 2026)