# Addition permit B2603666 at 4203 16th St NW, Washington

DC Department of Buildings permit B2603666: issued Sep 23, 2026 for addition work at 4203 16th St NW. - Demolition existing rear side retaining wall - new wood deck 17 1 x8 (136.80 sf) - new retaining wall h: 3 l: 35.

- Permit number: B2603666
- Issued: Sep 23, 2026
- Type of work: Addition (city: Construction, addition alteration repair)
- Status: Issued (city: Permit issued)
- Reported cost: Not listed
- ZIP code: 20011
- All permits at this address: https://nearbypermits.com/washington-dc/address/4203-16th-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 2026-10-07 04:38 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 4203 16th St NW: https://nearbypermits.com/washington-dc/address/4203-16th-st-nw/