# Fence, wall or deck permit BLD-ACC2024-00010 at 661 Maxwell Ave, Boulder

Boulder Planning and Development Services permit BLD-ACC2024-00010: issued Jul 11, 2024 for fence, wall or deck work at 661 Maxwell Ave. REVISION 5/13/26-Revision of staircase to a spiral staircase. Construction of a new detached Accessory Dwelling Unit approx. 960 sqft finished area and 555 unfinished basement area. 555 sqft of unfinished basement is for the main residence and is not for ADU. The FAR is 947 sqft for total building and the building coverage is 555 sqft.

- Permit number: BLD-ACC2024-00010
- Issued: Jul 11, 2024
- Type of work: Fence, wall or deck (city: Building Permit - Accessory, RES- Enclosed Structure with Heating or Cooling)
- Status: Finished (city: Letter of Completion)
- Reported cost: $550,000
- ZIP code: 80304
- All permits at this address: https://nearbypermits.com/boulder/address/661-maxwell-ave/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-13 15:13 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 661 Maxwell Ave: https://nearbypermits.com/boulder/address/661-maxwell-ave/