# Building permits at 818 Maxwell Ave, Boulder, CO 10 permits on record here. The newest, Oct 24, 2024: WITHDRAWN- Replacement boiler. Boulder publishes permits without map coordinates, so this address has no map and no quarter-mile list. ## At this address | Date | Type | Work | Cost | Permit | |---|---|---|---|---| | Oct 24, 2024 | Mechanical (HVAC) | WITHDRAWN- Replacement boiler. Boiler - 138,000 BTU input, 84% AFUE, natural gas. Note for historic district: we are not making any changes to the exterior of the home. Interior work only permitted | $10,191 | [MEC2024-01545](https://nearbypermits.com/boulder/permit/MEC2024-01545/) | | Feb 19, 2013 | Plumbing | Addition of 1470 square feet and remodel of 225 square feet for existing single family residence. Level 1 to have new family room, storage, mudroom, and 1/2 bath. Second level to have master suite, 2 bedrooms, and 2 bathrooms. Remodel to existing kitchen and bath. See ADR2012-00160 for administrativ | $10,000 | [PMT2012-06055-PLB](https://nearbypermits.com/boulder/permit/PMT2012-06055-PLB/) | | Feb 19, 2013 | Mechanical (HVAC) | Addition of 1470 square feet and remodel of 225 square feet for existing single family residence. Level 1 to have new family room, storage, mudroom, and 1/2 bath. Second level to have master suite, 2 bedrooms, and 2 bathrooms. Remodel to existing kitchen and bath. See ADR2012-00160 for administrativ | $5,000 | [PMT2012-06055-MEC](https://nearbypermits.com/boulder/permit/PMT2012-06055-MEC/) | | Feb 19, 2013 | Electrical | Addition of 1470 square feet and remodel of 225 square feet for existing single family residence. Level 1 to have new family room, storage, mudroom, and 1/2 bath. Second level to have master suite, 2 bedrooms, and 2 bathrooms. Remodel to existing kitchen and bath. See ADR2012-00160 for administrativ | $8,500 | [PMT2012-06055-ELE](https://nearbypermits.com/boulder/permit/PMT2012-06055-ELE/) | | Feb 19, 2013 | Addition | Addition of 1470 square feet and remodel of 225 square feet for existing single family residence. Level 1 to have new family room, storage, mudroom, and 1/2 bath. Second level to have master suite, 2 bedrooms, and 2 bathrooms. Remodel to existing kitchen and bath. See ADR2012-00160 for administrativ | $330,000 | [PMT2012-06055](https://nearbypermits.com/boulder/permit/PMT2012-06055/) | | Feb 20, 2008 | Roofing | Roofing Permit for total tear off and overlay of 6 squares of dimensional shingles at a 5:12 slope. HIS2008-00598 | $700 | [PMT2008-00598-RFG](https://nearbypermits.com/boulder/permit/PMT2008-00598-RFG/) | | Jun 28, 1994 | Alteration or repair | Porch, kitchen, bed,eating area one story addition the original general permit | $38,000 | [PMT1994-04680](https://nearbypermits.com/boulder/permit/PMT1994-04680/) | | Oct 4, 1993 | Roofing | Add 2 skylites and reroof the original general permit number is 937275. | $800 | [PMT1993-07275](https://nearbypermits.com/boulder/permit/PMT1993-07275/) | | Sep 14, 1993 | Alteration or repair | Garage conversion to studio/office the original general permit number is 93682 | $1,500 | [PMT1993-06820](https://nearbypermits.com/boulder/permit/PMT1993-06820/) | | Sep 22, 1992 | Alteration or repair | Garage conversion to studio/office the original general permit number is 92379 | $2,800 | [PMT1992-03795](https://nearbypermits.com/boulder/permit/PMT1992-03795/) | ## More on this street Other addresses on Maxwell Ave with permits, nearest house number first: - [815 Maxwell Ave 3](https://nearbypermits.com/boulder/address/815-maxwell-ave-3/): newest permit Aug 11, 2026 - [826 Maxwell Ave](https://nearbypermits.com/boulder/address/826-maxwell-ave/): newest permit Jun 15, 2026 - [806 Maxwell Ave](https://nearbypermits.com/boulder/address/806-maxwell-ave/): newest permit Dec 11, 2025 - [834 Maxwell Ave](https://nearbypermits.com/boulder/address/834-maxwell-ave/): newest permit Apr 27, 2026 - [900 Maxwell Ave](https://nearbypermits.com/boulder/address/900-maxwell-ave/): newest permit Jul 16, 2026 - [716 Maxwell Ave](https://nearbypermits.com/boulder/address/716-maxwell-ave/): newest permit Oct 14, 2025 - [707 Maxwell Ave](https://nearbypermits.com/boulder/address/707-maxwell-ave/): newest permit Nov 19, 2025 - [937 Maxwell Ave](https://nearbypermits.com/boulder/address/937-maxwell-ave/): newest permit Nov 24, 2025 - [665 Maxwell Ave](https://nearbypermits.com/boulder/address/665-maxwell-ave/): newest permit Oct 27, 2025 - [661 Maxwell Ave](https://nearbypermits.com/boulder/address/661-maxwell-ave/): newest permit Jun 26, 2026 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 00:42 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 10 permits at this address: https://nearbypermits.com/boulder/address/818-maxwell-ave/