# Building permits at 550 12th St, Boulder, CO 16 permits on record here. The newest, May 12, 2025: 2 replacement RTU AC units - 48,000 BTU, 13.4 SEER2. 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 | |---|---|---|---|---| | May 12, 2025 | Mechanical (HVAC) | 2 replacement RTU AC units - 48,000 BTU, 13.4 SEER2. New electrical circuits for condensers. | $22,990 | [MEC2025-00742](https://nearbypermits.com/boulder/permit/MEC2025-00742/) | | Jun 16, 2008 | Roofing | Residential reroof. SFD less than 2/12 | $16,848 | [PMT2008-02436-RFG](https://nearbypermits.com/boulder/permit/PMT2008-02436-RFG/) | | May 28, 2008 | Mechanical (HVAC) | Install venting and two gas fireplaces. Gas line existing from previous fireplace. | $1,546 | [PMT2008-02134-MEC](https://nearbypermits.com/boulder/permit/PMT2008-02134-MEC/) | | Oct 23, 2007 | Mechanical (HVAC) | Construction of a pool vault to isolate pool (on separate permit see PMT2007-04202) from an expansive soils condition. Includes associated plumbing, mechanical & electrical work for vault & pool. | $3,000 | [PMT2007-04451-MEC](https://nearbypermits.com/boulder/permit/PMT2007-04451-MEC/) | | Oct 23, 2007 | Electrical | Construction of a pool vault to isolate pool (on separate permit see PMT2007-04202) from an expansive soils condition. Includes associated plumbing, mechanical & electrical work for vault & pool. | $7,200 | [PMT2007-04451-ELE](https://nearbypermits.com/boulder/permit/PMT2007-04451-ELE/) | | Oct 23, 2007 | Pool or spa | Construction of a pool vault to isolate pool (on separate permit see PMT2007-04202) from an expansive soils condition. Includes associated plumbing, mechanical & electrical work for vault & pool. | $62,000 | [PMT2007-04451](https://nearbypermits.com/boulder/permit/PMT2007-04451/) | | Oct 5, 2007 | New building | In ground pool. Electrical, mechanical, gas, to be done by seperate contractor. Pool to be outside of new wetland buffer. | $110,000 | [PMT2007-04202](https://nearbypermits.com/boulder/permit/PMT2007-04202/) | | Sep 7, 2007 | Plumbing | Basement remodel and refurbishing of baths etc. Add garage storage to existing garag 136 SF not habitable space. Replace exterior deck with new 368 SF. Addition of plumbing fixtures. | $1,000 | [PMT2007-02016-PLB](https://nearbypermits.com/boulder/permit/PMT2007-02016-PLB/) | | Sep 7, 2007 | Electrical | Basement remodel and refurbishing of baths etc. Add garage storage to existing garag 136 SF not habitable space. Replace exterior deck with new 368 SF. Addition of plumbing fixtures. | $1,000 | [PMT2007-02016-ELE](https://nearbypermits.com/boulder/permit/PMT2007-02016-ELE/) | | Sep 7, 2007 | Alteration or repair | Basement remodel and refurbishing of baths etc. Add garage storage to existing garag 136 SF not habitable space. Replace exterior deck with new 368 SF. Addition of plumbing fixtures. | $27,826 | [PMT2007-02016](https://nearbypermits.com/boulder/permit/PMT2007-02016/) | | Jul 12, 2000 | Fence, wall or deck | Construct a 7 foot black welded rod iron fence | $15,000 | [PMT2000-02888-FEN](https://nearbypermits.com/boulder/permit/PMT2000-02888-FEN/) | | Oct 16, 1998 | Plumbing | Plumbing plumbing for new SFD | $6,820 | [PMT1998-07075-PLB](https://nearbypermits.com/boulder/permit/PMT1998-07075-PLB/) | | Sep 8, 1998 | Plumbing | New SFD (replaces demolished SFD). 4BR, 3.5BA, Unfinished Basement, Attached 2 Car Garage. Includes permits for Electrical (991698), Plumbing (987075) & Mechanical (987076 / 988275). | $6,820 | [PMT1998-05960-PLB](https://nearbypermits.com/boulder/permit/PMT1998-05960-PLB/) | | Sep 8, 1998 | Mechanical (HVAC) | New SFD (replaces demolished SFD). 4BR, 3.5BA, Unfinished Basement, Attached 2 Car Garage. Includes permits for Electrical (991698), Plumbing (987075) & Mechanical (987076 / 988275). | $14,210 | [PMT1998-05960-MEC](https://nearbypermits.com/boulder/permit/PMT1998-05960-MEC/) | | Sep 8, 1998 | Electrical | New SFD (replaces demolished SFD). 4BR, 3.5BA, Unfinished Basement, Attached 2 Car Garage. Includes permits for Electrical (991698), Plumbing (987075) & Mechanical (987076 / 988275). | $238 | [PMT1998-05960-ELE](https://nearbypermits.com/boulder/permit/PMT1998-05960-ELE/) | | Sep 8, 1998 | New building | New SFD (replaces demolished SFD). 4BR, 3.5BA, Unfinished Basement, Attached 2 Car Garage. Includes permits for Electrical (991698), Plumbing (987075) & Mechanical (987076 / 988275). | $490,000 | [PMT1998-05960](https://nearbypermits.com/boulder/permit/PMT1998-05960/) | ## More on this street Other addresses on 12th St with permits, nearest house number first: - [650 12th St](https://nearbypermits.com/boulder/address/650-12th-st/): newest permit Mar 18, 2025 - [651 12th St](https://nearbypermits.com/boulder/address/651-12th-st/): newest permit Jan 23, 2026 - [655 12th St](https://nearbypermits.com/boulder/address/655-12th-st/): newest permit Feb 27, 2025 - [728 12th St](https://nearbypermits.com/boulder/address/728-12th-st/): newest permit Aug 8, 2025 - [735 12th St](https://nearbypermits.com/boulder/address/735-12th-st/): newest permit Oct 18, 2024 - [820 12th St](https://nearbypermits.com/boulder/address/820-12th-st/): newest permit May 29, 2025 - [830 12th St](https://nearbypermits.com/boulder/address/830-12th-st/): newest permit Jan 20, 2026 - [840 12th St](https://nearbypermits.com/boulder/address/840-12th-st/): newest permit Sep 29, 2025 - [845 12th St](https://nearbypermits.com/boulder/address/845-12th-st/): newest permit Oct 13, 2025 - [891 12th St](https://nearbypermits.com/boulder/address/891-12th-st/): newest permit Oct 8, 2025 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 00:57 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 16 permits at this address: https://nearbypermits.com/boulder/address/550-12th-st/