# Building permits at 3966 Montclair Ln, Boulder, CO

Five permits on record here. The newest, Dec 2, 2024: 1178sf partially finished walk-out basement: *added bathroom 60sqft 1sink 1toilet 1full shower. 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 |
|---|---|---|---|---|
| Dec 2, 2024 | Alteration or repair | 1178sf partially finished walk-out basement: *added bathroom 60sqft 1sink 1toilet 1full shower, 2plugs 2lights 1fan *to include in assessed finished sqft two rooms, 225sqft and 225sqft | $12,590 | [BLD-SFD2024-00199](https://nearbypermits.com/boulder/permit/BLD-SFD2024-00199/) |
| Mar 4, 2010 | Mechanical (HVAC) | Replacement Forced Air Furnace | $3,490 | [PMT2010-20062-MEC](https://nearbypermits.com/boulder/permit/PMT2010-20062-MEC/) |
| Jul 27, 1994 | Alteration or repair | Finish portion of walkout basement the original general permit number is 94532 | $4,000 | [PMT1994-05322](https://nearbypermits.com/boulder/permit/PMT1994-05322/) |
| May 9, 1994 | New building | Plan check fee on voided permit dated 3/30/94 same the original general permit | Not listed | [PMT1994-03259](https://nearbypermits.com/boulder/permit/PMT1994-03259/) |
| May 9, 1994 | New building | Single family dwelling unfinished basement attache the original general permit | $150,000 | [PMT1994-03258](https://nearbypermits.com/boulder/permit/PMT1994-03258/) |

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 19:46 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 5 permits at this address: https://nearbypermits.com/boulder/address/3966-montclair-ln/