Project
2229 M St
Residential: Affordable Multi Family
Ditrict of Columbia, DC | 2027
- 92K GSF
About
2229 M St. in Washington, DC, owned by Key Urban, is a high-performance affordable multifamily project pursuing PHI Passive House Certification and has already achieved Passive House Classic – Design Certified status. The project team includes McClennan Architects, AUROS Group as the Certified Passive House Designer, Newcomb & Boyd, Rathgeber/Goss Associates, and CAS Engineering-DC, LLC. Passive House certification is a rigorous performance-based standard that requires exceptional attention to enclosure design, airtightness, thermal bridge reduction, moisture control, occupant comfort, and extremely low energy demand. Achieving Design Certification reflects that the building’s design has been carefully developed and verified to meet the demanding requirements of the Passive House Institute, setting a strong foundation for high performance in construction and operation.
Project Owner
Key Urban
Is the project Net Zero Energy or Net Zero Energy Ready?
Net Zero (Targeting)
Project Size in GSF
92K
Category of height
High-Rise
Number of residential units
90
How is the building all-electric for heating?
Air-source Heat Pump
What other systems are used for heating?
Air-source Heat Pump
Is the service hot water all-electric?
Yes
What is the primary system type for domestic hot water?
Air-source heat pump
What other systems are used for hot water?
Air-source heat pump
On-site renewable energy
50%
Is the owner purchasing off-site renewable energy to offset all electricity consumption?
Yes
The construction cost difference from "conventional" to being net zero "ready" (including incentives) for this building is
-1% to 1%
Certifications related to Energy / Carbon
Enterprise Green Communities Certification, ENERGY STAR, PHI, ZERH
Site EUI Energy Use Intensity is the amount of energy a project uses per square foot over the course of a year. Site EUI = Annual Energy Use (kBtus) / Building(s) Area (ft²) / One Year (yr)
17.9 kBtu/sf/year
Net Site EUI
15.9 kBtu/sf/year
The EUI is
Modeled
Carbon Emissions Intensity (CEI)
2.07kg/CO2e/sf
What is the climate zone for this project?
4A Mixed Humid