# Building permits at 1390 Fairfield Dr, Boulder, CO 18 permits on record here. The newest, Aug 20, 2025: VOID-180 Days no activity To install a 1.6 ton ported multi-zone Mitsubishi mini split system with 2 wall. 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 | |---|---|---|---|---| | Aug 20, 2025 | Mechanical (HVAC) | VOID-180 Days no activity To install a 1.6 ton ported multi-zone Mitsubishi mini split system with 2 wall heads in the customers ADU (no branch box). The condenser will sit on the side yard of the ADU on the SE corner of the building. The mini split heads will be located in the bedroom and living ro | $8,679 | [MEC2025-01349](https://nearbypermits.com/boulder/permit/MEC2025-01349/) | | Jul 14, 2023 | Fire systems | Plumis mist fire suppression system to protect an ADU. See BLD-ACC2020-00127 for general building permit. Mchugh-smith ADU (fspm) | $8,000 | [FIR2023-00250](https://nearbypermits.com/boulder/permit/FIR2023-00250/) | | May 18, 2023 | Plumbing | VOIDED DUE TO INACTIVITY OVER 180 DAYS *Conversion of existing accessory building into a detached ADU with new shower, kitchenette, washer/dryer and new closet. Associated electrical and plumbing work. No mechanical scope. | $2,500 | [PLB2020-00482](https://nearbypermits.com/boulder/permit/PLB2020-00482/) | | May 18, 2023 | Electrical | VOIDED DUE TO INACTIVITY OVER 180 DAYS *Conversion of existing accessory building into a detached ADU with new shower, kitchenette, washer/dryer and new closet. Associated electrical and plumbing work. No mechanical scope. | $1,000 | [ELE2020-01030](https://nearbypermits.com/boulder/permit/ELE2020-01030/) | | May 18, 2023 | Alteration or repair | Conversion of existing accessory building into a detached ADU with new shower, kitchenette, washer/dryer and new closet. Associated electrical and plumbing work. No mechanical scope. Associated with AUR2020-00004. Change of Scope 5/16/23 to include new 100-amp electrical panel and water heater in cr | $5,500 | [BLD-ACC2020-00127](https://nearbypermits.com/boulder/permit/BLD-ACC2020-00127/) | | Sep 6, 2018 | Plumbing | Removal and capping of shower and kitchen sink in accessory structure in response to CPL2017-01237. | $200 | [PLB2018-00415](https://nearbypermits.com/boulder/permit/PLB2018-00415/) | | Sep 6, 2018 | Alteration or repair | Removal and capping of shower and kitchen sink in accessory structure in response to CPL2017-01237. | $871 | [BLD-ACC2018-00110](https://nearbypermits.com/boulder/permit/BLD-ACC2018-00110/) | | Feb 12, 2014 | Plumbing | Two story addition to SFD. Addition to include garage with master suite above. Scope to include reconfiguration of main level bath and small addition to main level to locate new stairs, new furnace and water heater, new kitchen island, and all assoc.mechanical, electrical and plumbing. | $5,945 | [PMT2013-06947-PLB](https://nearbypermits.com/boulder/permit/PMT2013-06947-PLB/) | | Feb 12, 2014 | Mechanical (HVAC) | Two story addition to SFD. Addition to include garage with master suite above. Scope to include reconfiguration of main level bath and small addition to main level to locate new stairs, new furnace and water heater, new kitchen island, and all assoc.mechanical, electrical and plumbing. | $5,500 | [PMT2013-06947-MEC](https://nearbypermits.com/boulder/permit/PMT2013-06947-MEC/) | | Feb 12, 2014 | Electrical | Two story addition to SFD. Addition to include garage with master suite above. Scope to include reconfiguration of main level bath and small addition to main level to locate new stairs, new furnace and water heater, new kitchen island, and all assoc.mechanical, electrical and plumbing. | $8,000 | [PMT2013-06947-ELE](https://nearbypermits.com/boulder/permit/PMT2013-06947-ELE/) | | Feb 12, 2014 | Addition | Two story addition to SFD. Addition to include garage with master suite above. Scope to include reconfiguration of main level bath and small addition to main level to locate new stairs, new furnace and water heater, new kitchen island, and all assoc.mechanical, electrical and plumbing. | $125,000 | [PMT2013-06947](https://nearbypermits.com/boulder/permit/PMT2013-06947/) | | Aug 21, 2007 | Roofing | Roofing Permit for total tear off and overlay of 18 squares of dimensional shingles at a 1:12 & a 4:12 slope. | $4,250 | [PMT2007-03597-RFG](https://nearbypermits.com/boulder/permit/PMT2007-03597-RFG/) | | Nov 12, 2004 | Fence, wall or deck | 14' of 4' high, 27' of 5' high, 110' of 6' high cedar fencing, and 24' of 6' high chain link fencing. | $3,000 | [PMT2004-04389-FEN](https://nearbypermits.com/boulder/permit/PMT2004-04389-FEN/) | | Sep 1, 2004 | Plumbing | Addition of 149 square foot detached studio on existing detached accessory structure. Includes installation of 1/2 bath, new pellet stove, and install partiion wall in existing portion of structure. | $500 | [PMT2004-02715-PLB](https://nearbypermits.com/boulder/permit/PMT2004-02715-PLB/) | | Sep 1, 2004 | Mechanical (HVAC) | Addition of 149 square foot detached studio on existing detached accessory structure. Includes installation of 1/2 bath, new pellet stove, and install partiion wall in existing portion of structure. | $500 | [PMT2004-02715-MEC](https://nearbypermits.com/boulder/permit/PMT2004-02715-MEC/) | | Sep 1, 2004 | Electrical | Addition of 149 square foot detached studio on existing detached accessory structure. Includes installation of 1/2 bath, new pellet stove, and install partiion wall in existing portion of structure. | $700 | [PMT2004-02715-ELE](https://nearbypermits.com/boulder/permit/PMT2004-02715-ELE/) | | Sep 1, 2004 | Addition | Addition of 149 square foot detached studio on existing detached accessory structure. Includes installation of 1/2 bath, new pellet stove, and install partiion wall in existing portion of structure. | $15,780 | [PMT2004-02715](https://nearbypermits.com/boulder/permit/PMT2004-02715/) | | Jul 1, 1993 | Addition | Addition 12x16 great room 10x12 office 10x11 dinin the original general permit | $31,000 | [PMT1993-04675](https://nearbypermits.com/boulder/permit/PMT1993-04675/) | ## More on this street Other addresses on Fairfield Dr with permits, nearest house number first: - [1380 Fairfield Dr](https://nearbypermits.com/boulder/address/1380-fairfield-dr/): newest permit Mar 11, 2026 - [1360 Fairfield Dr](https://nearbypermits.com/boulder/address/1360-fairfield-dr/): newest permit Nov 25, 2024 - [1340 Fairfield Dr](https://nearbypermits.com/boulder/address/1340-fairfield-dr/): newest permit Dec 12, 2024 - [1280 Fairfield Dr](https://nearbypermits.com/boulder/address/1280-fairfield-dr/): newest permit Nov 5, 2024 - [1260 Fairfield Dr](https://nearbypermits.com/boulder/address/1260-fairfield-dr/): newest permit Sep 2, 2025 - [1240 Fairfield Dr](https://nearbypermits.com/boulder/address/1240-fairfield-dr/): newest permit Jun 3, 2026 - [1225 Fairfield Dr](https://nearbypermits.com/boulder/address/1225-fairfield-dr/): newest permit Aug 20, 2026 - [1180 Fairfield Dr](https://nearbypermits.com/boulder/address/1180-fairfield-dr/): newest permit Oct 13, 2025 - [1110 Fairfield Dr](https://nearbypermits.com/boulder/address/1110-fairfield-dr/): newest permit Apr 29, 2026 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 23:01 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 18 permits at this address: https://nearbypermits.com/boulder/address/1390-fairfield-dr/