# New building permit B2505855 at 2229 M St NE, Washington

DC Department of Buildings permit B2505855: issued Sep 22, 2026 for new building work at 2229 M St NE. 2229 M street NE is a new construction, affordable multifamily project for seniors in the carver/langston neighborhood of washington dc, just south of the national arboretum. The building will be 7 stories in height with a cellar and penthouse, and will provide 92 dwelling units with a mix of studio, 1-bedroom and 2-bedroom units. The project is a consolidated planned unit development, z.c. Case no. 22-21, With a zoning map ammendment from ra-2 zone to ra-4 zone approved by the zoning commission with support from the office of planning and anc 5d. Construction type is 1b with poured in place concrete structure. The cellar contains 8 dwelling units, bike storage, electrical, water, maintenance, and other service spaces. The 1st floor houses 7 dwelling units, the entry lobby, leasing/ management office suite, community spaces, fitness room the loading bay and trash compactor are at an intermediate level betwen 1st and 2nd. The 2nd floor houses 11 dwelling units. The 3rd - 7th floors house 12 dwelling units each. The penthouse houses 5 dwelling units, amenity space with access to a roof terrace. Trash rooms are located on each floor, those at 3rd floor and above access to the trash chute. Roof is accessed via hatch on stair 1, and equipment over 4 FT are located within a screened enclosure. Surface parking and the internal loading bay are accessed from the rear alley. Generator is also located in the rear. The building will achieve enterprise green communities as well as passive house institute (phi) & on-site solar certification. Sustainable features include energy efficient and air tight building envelope with continuous insulation and minimized thermal bridging; efficient mechanical, electrical, and plumbing systems; extensive green roof; solar panels; and stormwater management.

- Permit number: B2505855
- Issued: Sep 22, 2026
- Type of work: New building (city: Construction, new building)
- Status: Issued (city: Permit issued)
- Reported cost: Not listed
- ZIP code: 20002
- All permits at this address: https://nearbypermits.com/washington-dc/address/2229-m-st-ne/

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Source: DC Department of Buildings permit data (https://opendata.dc.gov/datasets/7296e6392349498bb6ba6ba3db836644_18), District of Columbia, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Checked 2026-10-06 12:22 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 2229 M St NE: https://nearbypermits.com/washington-dc/address/2229-m-st-ne/