# Building permits at 851 15th St, Boulder, CO

Eight permits on record here. The newest, Oct 27, 2025: Installation of a flush-mount, grid-tied. 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 27, 2025 | Electrical | Installation of a flush-mount, grid-tied, 7.56kW PV solar system, and one Tesla Powerwall 3 battery. *See BLD-ACC2025-00079 for structural upgrade* | $27,005 | [ELE2025-01008](https://nearbypermits.com/boulder/permit/ELE2025-01008/) |
| Aug 26, 2025 | Fence, wall or deck | Repair of garage and lean-to carport. Includes: 1) sistering existing carport roof joists 2) replacing structural beam and installing three concrete piers for new support posts. 3) Reinforce garage portal frame. | $12,773 | [BLD-ACC2025-00079](https://nearbypermits.com/boulder/permit/BLD-ACC2025-00079/) |
| May 11, 2021 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* Installation of a ductless split system with a 3 ton outdoor unit and 4 zones inside | $17,583 | [MEC2021-00809](https://nearbypermits.com/boulder/permit/MEC2021-00809/) |
| Aug 27, 2020 | Electrical | overhead temporary power pole | Not listed | [ELE2020-01176](https://nearbypermits.com/boulder/permit/ELE2020-01176/) |
| Aug 26, 2020 | Plumbing | Demolition of two additions and rebuild of expanded additions for a single story single family dwelling over partial basement and crawl space. Lower level of one addition to be a bedroom suite and to be crawl space in the other addition. Main level additions to be a master suite and additional bedro | $15,000 | [PLB2020-00371](https://nearbypermits.com/boulder/permit/PLB2020-00371/) |
| Aug 26, 2020 | Mechanical (HVAC) | Demolition of two additions and rebuild of expanded additions for a single story single family dwelling over partial basement and crawl space. Lower level of one addition to be a bedroom suite and to be crawl space in the other addition. Main level additions to be a master suite and additional bedro | $10,000 | [MEC2020-00846](https://nearbypermits.com/boulder/permit/MEC2020-00846/) |
| Aug 26, 2020 | Electrical | Demolition of two additions and rebuild of expanded additions for a single story single family dwelling over partial basement and crawl space. Lower level of one addition to be a bedroom suite and to be crawl space in the other addition. Main level additions to be a master suite and additional bedro | $12,000 | [ELE2020-00773](https://nearbypermits.com/boulder/permit/ELE2020-00773/) |
| Aug 26, 2020 | Addition | *Demolition of two additions and rebuild of expanded additions for a single story single family dwelling over partial basement and crawl space. Lower level of one addition to be a bedroom suite and to be crawl space in the other addition. Main level additions to be a master suite and additional bedr | $267,000 | [BLD-SFD2020-00237](https://nearbypermits.com/boulder/permit/BLD-SFD2020-00237/) |

## More on this street

Other addresses on 15th St with permits, nearest house number first:

- [876 15th St](https://nearbypermits.com/boulder/address/876-15th-st/): newest permit May 28, 2025
- [820 15th St](https://nearbypermits.com/boulder/address/820-15th-st/): newest permit Nov 18, 2025
- [888 15th St](https://nearbypermits.com/boulder/address/888-15th-st/): newest permit Dec 17, 2024
- [915 15th St](https://nearbypermits.com/boulder/address/915-15th-st/): newest permit Jul 28, 2026
- [921 15th St](https://nearbypermits.com/boulder/address/921-15th-st/): newest permit Jun 11, 2026
- [937 15th St](https://nearbypermits.com/boulder/address/937-15th-st/): newest permit Sep 5, 2025
- [764 15th St](https://nearbypermits.com/boulder/address/764-15th-st/): newest permit Nov 1, 2024
- [1020 15th St](https://nearbypermits.com/boulder/address/1020-15th-st/): newest permit Nov 7, 2024
- [1025 15th St](https://nearbypermits.com/boulder/address/1025-15th-st/): newest permit Jul 24, 2026
- [645 15th St](https://nearbypermits.com/boulder/address/645-15th-st/): newest permit May 21, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 08:34 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 8 permits at this address: https://nearbypermits.com/boulder/address/851-15th-st/