# Addition permit B2509898 at 4510 Harrison St NW, Washington

DC Department of Buildings permit B2509898: issued May 29, 2026 for addition work at 4510 Harrison St NW. Complete interior renovation and rear addition to an existing single-family residence along with an accessory dwelling unit.

- Permit number: B2509898
- Issued: May 29, 2026
- Type of work: Addition (city: Construction, addition alteration repair)
- Status: Issued (city: Permit issued)
- Reported cost: Not listed
- ZIP code: 20015
- All permits at this address: https://nearbypermits.com/washington-dc/address/4510-harrison-st-nw/

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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 12:47 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 4510 Harrison St NW: https://nearbypermits.com/washington-dc/address/4510-harrison-st-nw/