# Alteration or repair permit BLD-SFD2025-00221 at 645 S 42nd St, Boulder

Boulder Planning and Development Services permit BLD-SFD2025-00221: issued Jun 12, 2025 for alteration or repair work at 645 S 42nd St. Replace original casement window on the southeast side of the basement with a new egress window of 32 inches in width. No new header is needed for the new egress window because it's width does not exceed the existing window opening in the basement wall. The concrete wall will be cut to the new egress window's opening height.

- Permit number: BLD-SFD2025-00221
- Issued: Jun 12, 2025
- Type of work: Alteration or repair (city: Building Permit - Single Family Detached Dwelling, Alteration)
- Status: Finished (city: Letter of Completion)
- Reported cost: $9,000
- ZIP code: 80305
- All permits at this address: https://nearbypermits.com/boulder/address/645-s-42nd-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 14:30 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 645 S 42nd St: https://nearbypermits.com/boulder/address/645-s-42nd-st/