# Building permits at 3119 9th St, Boulder, CO 11 permits on record here. The newest, Dec 2, 2025: VOID- 180 Days no activity Mitsubishi Hyper Heat System - System 1 System Size: 28.6K BTU @ 5F 2/ 30K (Max). 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 | |---|---|---|---|---| | Dec 2, 2025 | Mechanical (HVAC) | VOID- 180 Days no activity Mitsubishi Hyper Heat System - System 1 System Size: 28.6K BTU @ 5F 2/ 30K (Max) Cooling System Components: (1) Mitsubishi Wall-Mounted - MSZ - FX06NL (Upstairs Office) (1) Mitsubishi Wall-Mounted - MSZ - FX09NL (Upstairs Guest) (1) Mitsubishi Wall-Mounted - MSZ- FX12NL (U | $40,313 | [MEC2025-02138](https://nearbypermits.com/boulder/permit/MEC2025-02138/) | | Oct 10, 2023 | Mechanical (HVAC) | *Voided for inactivity - requirements not met.* Replace Boiler system - 120,000 BTU 95% AFUE. | $13,809 | [MEC2023-01499](https://nearbypermits.com/boulder/permit/MEC2023-01499/) | | Mar 12, 2013 | Alteration or repair | Repair to existing foundation to SFD. (New frost depth.) | $16,313 | [PMT2013-00804](https://nearbypermits.com/boulder/permit/PMT2013-00804/) | | Oct 4, 2012 | Roofing | Total tear off and reroof, SFD, Standing Seam Metal Shingles, 30 squares. Contractor indicates three roof pitches: 12/12; 10/12; 5/12. Install per manufacturers instructions and in accordance with IRC 2006 Section R905. Midroof inspection required. Manufacturers literature shall be provided to inspe | $23,691 | [PMT2012-04811-RFG](https://nearbypermits.com/boulder/permit/PMT2012-04811-RFG/) | | Sep 21, 2005 | Plumbing | New 843 total square foot garage with studio above, 477 square feet of finished storage area, 429 square feet of unfinshed area on second floor, garage is 846 square feet. | $1,000 | [PMT2005-02123-PLB](https://nearbypermits.com/boulder/permit/PMT2005-02123-PLB/) | | Sep 21, 2005 | Mechanical (HVAC) | New 843 total square foot garage with studio above, 477 square feet of finished storage area, 429 square feet of unfinshed area on second floor, garage is 846 square feet. | $500 | [PMT2005-02123-MEC](https://nearbypermits.com/boulder/permit/PMT2005-02123-MEC/) | | Sep 21, 2005 | Electrical | New 843 total square foot garage with studio above, 477 square feet of finished storage area, 429 square feet of unfinshed area on second floor, garage is 846 square feet. | $2,500 | [PMT2005-02123-ELE](https://nearbypermits.com/boulder/permit/PMT2005-02123-ELE/) | | Sep 21, 2005 | New building | New 843 total square foot garage with studio above, 477 square feet of finished storage area, 429 square feet of unfinshed area on second floor, garage is 846 square feet. | $119,917 | [PMT2005-02123](https://nearbypermits.com/boulder/permit/PMT2005-02123/) | | Nov 8, 2004 | Demolition | Demolish existing garage. | Not listed | [PMT2004-04035-DEM](https://nearbypermits.com/boulder/permit/PMT2004-04035-DEM/) | | Apr 1, 1994 | Addition | Two story bedroom and bath addition to rear of str the original general permit | $80,000 | [PMT1994-02266](https://nearbypermits.com/boulder/permit/PMT1994-02266/) | | Jul 15, 1992 | Alteration or repair | Enclose existing porch the original general permit number is 921700. | $2,000 | [PMT1992-01700](https://nearbypermits.com/boulder/permit/PMT1992-01700/) | ## More on this street Other addresses on 9th St with permits, nearest house number first: - [3136 9th St](https://nearbypermits.com/boulder/address/3136-9th-st/): newest permit May 28, 2026 - [3141 9th St](https://nearbypermits.com/boulder/address/3141-9th-st/): newest permit Aug 28, 2026 - [3153 9th St](https://nearbypermits.com/boulder/address/3153-9th-st/): newest permit Apr 1, 2025 - [3156 9th St](https://nearbypermits.com/boulder/address/3156-9th-st/): newest permit May 27, 2026 - [3055 9th St](https://nearbypermits.com/boulder/address/3055-9th-st/): newest permit Mar 23, 2026 - [3188 9th St](https://nearbypermits.com/boulder/address/3188-9th-st/): newest permit Nov 27, 2024 - [3048 9th St](https://nearbypermits.com/boulder/address/3048-9th-st/): newest permit Apr 23, 2026 - [3045 9th St](https://nearbypermits.com/boulder/address/3045-9th-st/): newest permit Jan 12, 2026 - [3036 9th St](https://nearbypermits.com/boulder/address/3036-9th-st/): newest permit Jul 7, 2025 - [3025 9th St](https://nearbypermits.com/boulder/address/3025-9th-st/): newest permit May 18, 2026 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 03:32 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 11 permits at this address: https://nearbypermits.com/boulder/address/3119-9th-st/