# Addition permit BLD-SFD2020-00371 at 70 S 31st St, Boulder

Boulder Planning and Development Services permit BLD-SFD2020-00371: issued Feb 22, 2021 for addition work at 70 S 31st St. *Addition and remodel of existing residence, resulting in 4 bedrooms (includes 'office' at first floor). Approved under HIS2020-00196.

- Permit number: BLD-SFD2020-00371
- Issued: Feb 22, 2021
- Type of work: Addition (city: Building Permit - Single Family Detached Dwelling, Addition and Alteration)
- Status: Finished (city: Letter of Completion)
- Reported cost: $312,831
- ZIP code: 80305
- All permits at this address: https://nearbypermits.com/boulder/address/70-s-31st-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 18:58 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 70 S 31st St: https://nearbypermits.com/boulder/address/70-s-31st-st/