# Building permits at 1800 Oak Ave, Boulder, CO

10 permits on record here. The newest, Jun 26: Replacing existing furnace and AC with new 4 ton. 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 |
|---|---|---|---|---|
| Jun 26, 2026 | Mechanical (HVAC) | Replacing existing furnace and AC with new 4 ton, 100K BTU, heat pump system. Electrical is a dedicated 240v, 15A circuit and will need to be supplied via a disconnect box with 15ft of the desired outdoor unit location PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new pla | $13,682 | [MEC2026-01062](https://nearbypermits.com/boulder/permit/MEC2026-01062/) |
| Jun 25, 2025 | Electrical | Roof-mounted solar installation 6.89 kW DC 4.93 kW AC | $19,003 | [ELE2025-00464](https://nearbypermits.com/boulder/permit/ELE2025-00464/) |
| Nov 14, 2014 | Mechanical (HVAC) | Replace water heater. 50 gal. gas, 40,000 btu | $1,311 | [PMT2014-05168-MEC](https://nearbypermits.com/boulder/permit/PMT2014-05168-MEC/) |
| May 1, 2007 | Roofing | Roofing Permit for total tear off and overlay of 26 squares if dimensional shingles at an 8:12 slope | $5,775 | [PMT2007-01634-RFG](https://nearbypermits.com/boulder/permit/PMT2007-01634-RFG/) |
| Apr 18, 2001 | Plumbing | basement finish | $2,000 | [PMT2001-01406-PLB](https://nearbypermits.com/boulder/permit/PMT2001-01406-PLB/) |
| Apr 18, 2001 | Mechanical (HVAC) | basement finish | $500 | [PMT2001-01406-MEC](https://nearbypermits.com/boulder/permit/PMT2001-01406-MEC/) |
| Apr 18, 2001 | Electrical | basement finish | $1,000 | [PMT2001-01406-ELE](https://nearbypermits.com/boulder/permit/PMT2001-01406-ELE/) |
| Apr 18, 2001 | Alteration or repair | basement finish | $20,000 | [PMT2001-01406](https://nearbypermits.com/boulder/permit/PMT2001-01406/) |
| Jan 3, 1996 | Alteration or repair | Finish den in basement the original general permit number is 959452. | $2,500 | [PMT1995-09452](https://nearbypermits.com/boulder/permit/PMT1995-09452/) |
| Feb 26, 1988 | New building | 1 Dw un. The original general permit number is m6250. | $86,500 | [PMT1988-M6250](https://nearbypermits.com/boulder/permit/PMT1988-M6250/) |

## Zoning requests nearby

We don't list zoning cases for Boulder yet. Look them up on the city's Board of Zoning Adjustment page: https://bouldercolorado.gov/government/board-commission/board-zoning-adjustment

## More on this street

Other addresses on Oak Ave with permits, nearest house number first:

- [1790 Oak Ave](https://nearbypermits.com/boulder/address/1790-oak-ave/): newest permit Aug 25, 2025
- [1780 Oak Ave](https://nearbypermits.com/boulder/address/1780-oak-ave/): newest permit Sep 14, 2026
- [1770 Oak Ave](https://nearbypermits.com/boulder/address/1770-oak-ave/): newest permit Oct 3, 2025
- [1833 Oak Ave](https://nearbypermits.com/boulder/address/1833-oak-ave/): newest permit Nov 5, 2024
- [1760 Oak Ave](https://nearbypermits.com/boulder/address/1760-oak-ave/): newest permit Oct 9, 2025
- [1750 Oak Ave](https://nearbypermits.com/boulder/address/1750-oak-ave/): newest permit Sep 8, 2026
- [1740 Oak Ave](https://nearbypermits.com/boulder/address/1740-oak-ave/): newest permit Dec 30, 2025
- [1919 Oak Ave](https://nearbypermits.com/boulder/address/1919-oak-ave/): newest permit Jan 30, 2026
- [1929 Oak Ave](https://nearbypermits.com/boulder/address/1929-oak-ave/): newest permit Apr 27, 2026
- [1947 Oak Ave](https://nearbypermits.com/boulder/address/1947-oak-ave/): newest permit Nov 5, 2024

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 20:17 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/1800-oak-ave/