# Building permits at 345 Bates Ave, Boulder, CO

11 permits on record here. The newest, Jul 14: This project consists of a 218 SQ FT basement remodel. 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 |
|---|---|---|---|---|
| Jul 14, 2026 | Alteration or repair | This project consists of a 218 SQ FT basement remodel, includes an updated bathroom, laundry room, and new storage room. | $90,000 | [BLD-SFD2026-00200](https://nearbypermits.com/boulder/permit/BLD-SFD2026-00200/) |
| Dec 8, 2022 | Electrical | Install 9.6kW roof mounted solar PV system | $13,056 | [ELE2022-01575](https://nearbypermits.com/boulder/permit/ELE2022-01575/) |
| Mar 24, 2021 | Plumbing | 1. Remodel / reconfiguration of (2) bathrroms at main level of exisitng home. 136 SQ. FT. 2. New backyard deck under 30" 206 SQ. FT. 3. New backyard patio 174 SQ. FT. | $4,000 | [PLB2021-00105](https://nearbypermits.com/boulder/permit/PLB2021-00105/) |
| Mar 24, 2021 | Mechanical (HVAC) | 1. Remodel / reconfiguration of (2) bathrroms at main level of exisitng home. 136 SQ. FT. 2. New backyard deck under 30" 206 SQ. FT. 3. New backyard patio 174 SQ. FT. | $1,000 | [MEC2021-00334](https://nearbypermits.com/boulder/permit/MEC2021-00334/) |
| Mar 24, 2021 | Electrical | 1. Remodel / reconfiguration of (2) bathrroms at main level of exisitng home. 136 SQ. FT. 2. New backyard deck under 30" 206 SQ. FT. 3. New backyard patio 174 SQ. FT. | $3,000 | [ELE2021-00288](https://nearbypermits.com/boulder/permit/ELE2021-00288/) |
| Mar 24, 2021 | Addition | 1. Remodel / reconfiguration of (2) bathrroms at main level of exisitng home. 136 SQ. FT. 2. New backyard deck under 30" 206 SQ. FT. 3. New backyard patio 174 SQ. FT. | $92,000 | [BLD-SFD2021-00086](https://nearbypermits.com/boulder/permit/BLD-SFD2021-00086/) |
| Jul 27, 2020 | Alteration or repair | *Installation of 4 helical piers for foundation stabilization. | $14,900 | [BLD-SFD2020-00314](https://nearbypermits.com/boulder/permit/BLD-SFD2020-00314/) |
| Sep 3, 2015 | Alteration or repair | Installation of two new egress windows in rear basement wall of single family detached dwelling. | $4,000 | [PMT2015-03783](https://nearbypermits.com/boulder/permit/PMT2015-03783/) |
| Jul 2, 2007 | Roofing | Remove existing shingles and re-roof single-family residence with dimensional shingles. 24 squares, 5:12 pitch. | $3,600 | [PMT2007-02723-RFG](https://nearbypermits.com/boulder/permit/PMT2007-02723-RFG/) |
| Aug 11, 2004 | Electrical | Electrical service change (200 amps) and installation of three outlets. | $2,000 | [PMT2004-03144-ELE](https://nearbypermits.com/boulder/permit/PMT2004-03144-ELE/) |
| Nov 16, 1988 | Roofing | Roofing reroof with t-loks | $1,320 | [PMT1988-N2719-RFG](https://nearbypermits.com/boulder/permit/PMT1988-N2719-RFG/) |

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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 08:59 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 11 permits at this address: https://nearbypermits.com/boulder/address/345-bates-ave/