# Building permits at 3855 Northbrook Dr, Boulder, CO

Eight permits on record here. The newest, May 22: Replacement furnace, heat pump replacing AC and replacement water heater for single family detached dwelling. 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 |
|---|---|---|---|---|
| May 22, 2026 | Mechanical (HVAC) | replacement furnace, heat pump replacing AC and replacement water heater for single family detached dwelling - includes electrical PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitat | $23,897 | [MEC2026-00842](https://nearbypermits.com/boulder/permit/MEC2026-00842/) |
| Jun 22, 2016 | Mechanical (HVAC) | Replacement Comfort Cooling | $5,006 | [PMT2016-20198-MEC](https://nearbypermits.com/boulder/permit/PMT2016-20198-MEC/) |
| Mar 27, 2012 | Fence, wall or deck | Replacement metal, non-privacy fence along rear yard | Not listed | [PMT2012-01345-FLD](https://nearbypermits.com/boulder/permit/PMT2012-01345-FLD/) |
| Mar 27, 2012 | Fence, wall or deck | Replacement metal, non-privacy fence along rear yard | $3,598 | [PMT2012-01345-FEN](https://nearbypermits.com/boulder/permit/PMT2012-01345-FEN/) |
| Apr 7, 2004 | Electrical | Conversion of sun deck into 4 season sunroom, and addition of 40 square feet to kitchen of single-family residence. | $100 | [PMT2004-00995-ELE](https://nearbypermits.com/boulder/permit/PMT2004-00995-ELE/) |
| Apr 7, 2004 | Addition | Conversion of sun deck into 4 season sunroom, and addition of 40 square feet to kitchen of single-family residence. | $13,958 | [PMT2004-00995](https://nearbypermits.com/boulder/permit/PMT2004-00995/) |
| Aug 6, 2003 | Mechanical (HVAC) | Installation of a forced air furnace (92k BTU) and an A.C. unit (42k BTU). | $4,418 | [PMT2003-03230-MEC](https://nearbypermits.com/boulder/permit/PMT2003-03230-MEC/) |
| Aug 6, 2003 | Electrical | Installation of a forced air furnace (92k BTU) and an A.C. unit (42k BTU). | $188 | [PMT2003-03230-ELE](https://nearbypermits.com/boulder/permit/PMT2003-03230-ELE/) |

## More on this street

Other addresses on Northbrook Dr with permits, nearest house number first:

- [3859 Northbrook Dr](https://nearbypermits.com/boulder/address/3859-northbrook-dr/): newest permit Jan 10, 2025
- [3835 Northbrook Dr](https://nearbypermits.com/boulder/address/3835-northbrook-dr/): newest permit Jan 28, 2026
- [3879 Northbrook Dr](https://nearbypermits.com/boulder/address/3879-northbrook-dr/): newest permit Jul 24, 2026
- [3830 Northbrook Dr](https://nearbypermits.com/boulder/address/3830-northbrook-dr/): newest permit Jan 2, 2025
- [3825 Northbrook Dr](https://nearbypermits.com/boulder/address/3825-northbrook-dr/): newest permit Jun 24, 2025
- [3822 Northbrook Dr](https://nearbypermits.com/boulder/address/3822-northbrook-dr/): newest permit Oct 1, 2026
- [3808 Northbrook Dr](https://nearbypermits.com/boulder/address/3808-northbrook-dr/): newest permit Apr 4, 2025
- [3805 Northbrook Dr](https://nearbypermits.com/boulder/address/3805-northbrook-dr/): newest permit Jun 24, 2025

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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 13:50 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/3855-northbrook-dr/