# Alteration or repair permit B2604416 at 111 Massachusetts Ave NW, Washington

DC Department of Buildings permit B2604416: issued Aug 19, 2026 for alteration or repair work at 111 Massachusetts Ave NW. Revision to permit b2510039 affecting 395 sf to re-balance the existing stair pressurization systems and update their accompanying special inspections the existing stair pressurizations systems are isolated to stair 1, stair 2 and stair 3. 2 Mechanical rooms on the ph level are affected to add indicator lights and local disconnects for the systems.

- Permit number: B2604416
- Issued: Aug 19, 2026
- Type of work: Alteration or repair (city: Construction, alteration and repair)
- Status: Issued (city: Permit issued)
- Reported cost: Not listed
- ZIP code: 20001
- All permits at this address: https://nearbypermits.com/washington-dc/address/111-massachusetts-ave-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 00:05 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 111 Massachusetts Ave NW: https://nearbypermits.com/washington-dc/address/111-massachusetts-ave-nw/