# Building permits at 1645 Linden Ave, Boulder, CO

Nine permits on record here. The newest, Sep 24: All Structures must be permitted separately Total tear-off & reroof of SFD. 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 |
|---|---|---|---|---|
| Sep 24, 2026 | Roofing | All Structures must be permitted separately Total tear-off & reroof of SFD, 22 squares of dimensional shingles on a pitch represented as 4/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other t | $15,998 | [RFG2026-00853](https://nearbypermits.com/boulder/permit/RFG2026-00853/) |
| Feb 12, 2025 | Mechanical (HVAC) | VOID - 180 Days no activity 1-Bosch heat pump 36,000 BTUs 20 SEER, 10.5 HSPF 1-Two Stage BGH96M080B3B Gas Furnace 80,000 BTUs 96% AFUE 1-Bosch Cased Coil 1-DISCONNECT/RECONNECT WITHOUT GFCI | $20,648 | [MEC2025-00234](https://nearbypermits.com/boulder/permit/MEC2025-00234/) |
| Jun 23, 2023 | Fire systems | Plumis Mist fire suppression for a new ADU. See BLD-ACC2023-00004 for general building permit. Cochran residence (fspm) | $6,500 | [FIR2023-00210](https://nearbypermits.com/boulder/permit/FIR2023-00210/) |
| Apr 5, 2023 | New building | 364 square feet of new detached construction to be used as an accessory dwelling unit. Project will include a concrete foundation, new electrical, mechanical, and plumbing work. The proposed ADU will include (1) bedroom, (1) full bath, a kitchen, and laundry facilities. No new gas infrastructure is  | $159,026 | [BLD-ACC2023-00004](https://nearbypermits.com/boulder/permit/BLD-ACC2023-00004/) |
| May 24, 2022 | Roofing | New installation of one 14" VELUX Sun Tunnel, model TMR with energy efficiency kit. U-factor is.38. No structural changes. Work area is less than 100 sq ft. | $1,239 | [RFG2022-00461](https://nearbypermits.com/boulder/permit/RFG2022-00461/) |
| Jun 8, 2004 | Mechanical (HVAC) | mechanical permit to replace a water heater | $660 | [PMT2004-02125-MEC](https://nearbypermits.com/boulder/permit/PMT2004-02125-MEC/) |
| Jul 6, 2001 | Electrical | Residential Service change to 150 amps. | $500 | [PMT2001-02847-ELE](https://nearbypermits.com/boulder/permit/PMT2001-02847-ELE/) |
| Jul 6, 2001 | Mechanical (HVAC) | Install new comfort cooling system including the electrical. | $3,789 | [PMT2001-02840-MEC](https://nearbypermits.com/boulder/permit/PMT2001-02840-MEC/) |
| Jul 6, 2001 | Electrical | Install new comfort cooling system including the electrical. | $400 | [PMT2001-02840-ELE](https://nearbypermits.com/boulder/permit/PMT2001-02840-ELE/) |

## 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 Linden Ave with permits, nearest house number first:

- [1680 Linden Ave](https://nearbypermits.com/boulder/address/1680-linden-ave/): newest permit Jul 24, 2025
- [1690 Linden Ave](https://nearbypermits.com/boulder/address/1690-linden-ave/): newest permit Sep 24, 2026
- [1595 Linden Ave](https://nearbypermits.com/boulder/address/1595-linden-ave/): newest permit Jul 15, 2025
- [1590 Linden Ave](https://nearbypermits.com/boulder/address/1590-linden-ave/): newest permit Nov 13, 2025
- [1705 Linden Ave](https://nearbypermits.com/boulder/address/1705-linden-ave/): newest permit Apr 3, 2026
- [1720 Linden Ave](https://nearbypermits.com/boulder/address/1720-linden-ave/): newest permit May 20, 2026
- [1550 Linden Ave](https://nearbypermits.com/boulder/address/1550-linden-ave/): newest permit Jan 31, 2025
- [1535 Linden Ave](https://nearbypermits.com/boulder/address/1535-linden-ave/): newest permit Jul 17, 2025
- [1495 Linden Ave](https://nearbypermits.com/boulder/address/1495-linden-ave/): newest permit Apr 9, 2025
- [1305 Linden Ave](https://nearbypermits.com/boulder/address/1305-linden-ave/): newest permit Jul 7, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 17:26 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 9 permits at this address: https://nearbypermits.com/boulder/address/1645-linden-ave/