# Building permits at 1023 Forest Ave, Boulder, CO

Three permits here in the last two years. The newest, Aug 19: Installing a 3 ton Mitsubishi split system with a 3 ton air handler and 1/2 ton mini split head in the. 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 19, 2026 | Mechanical (HVAC) | Installing a 3 ton Mitsubishi split system with a 3 ton air handler and 1/2 ton mini split head in the upstairs bedroom. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the insp | $18,800 | [MEC2026-01489](https://nearbypermits.com/boulder/permit/MEC2026-01489/) |
| Aug 17, 2026 | Mechanical (HVAC) | Remove existing water heater. Installing a 58 gallon heat pump water heater. Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: Al | $3,500 | [MEC2026-01454](https://nearbypermits.com/boulder/permit/MEC2026-01454/) |
| Jul 14, 2026 | Electrical | ESS Installation new system size: 30.00kwhac · 2 franklin apower 2, 15.00kwh battery | $30,706 | [ELE2026-00652](https://nearbypermits.com/boulder/permit/ELE2026-00652/) |

## More on this street

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

- [907 Forest Ave](https://nearbypermits.com/boulder/address/907-forest-ave/): newest permit Mar 20, 2026
- [515 Forest Ave](https://nearbypermits.com/boulder/address/515-forest-ave/): newest permit Aug 31, 2026
- [390 Forest Ave](https://nearbypermits.com/boulder/address/390-forest-ave/): newest permit Nov 13, 2025
- [305 Forest Ave](https://nearbypermits.com/boulder/address/305-forest-ave/): newest permit Jan 17, 2025
- [300 Forest Ave](https://nearbypermits.com/boulder/address/300-forest-ave/): newest permit Jul 1, 2026
- [1755 Forest Ave](https://nearbypermits.com/boulder/address/1755-forest-ave/): newest permit Apr 23, 2025
- [1775 Forest Ave](https://nearbypermits.com/boulder/address/1775-forest-ave/): newest permit Oct 24, 2024
- [1805 Forest Ave](https://nearbypermits.com/boulder/address/1805-forest-ave/): newest permit Sep 14, 2026
- [1860 Forest Ave](https://nearbypermits.com/boulder/address/1860-forest-ave/): newest permit Mar 31, 2026
- [2299 Forest Ave](https://nearbypermits.com/boulder/address/2299-forest-ave/): newest permit Sep 11, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 12:37 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 3 permits at this address: https://nearbypermits.com/boulder/address/1023-forest-ave/