# Building permits at 811 18th St, Boulder, CO

Five permits on record here. The newest, Aug 13: Replace (2) 40-gallon water heaters. 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 13, 2026 | Mechanical (HVAC) | Replace (2) 40-gallon water heaters. 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 inspection process, please provide photographic evidence of the pressure test directly t | $4,000 | [MEC2026-01422](https://nearbypermits.com/boulder/permit/MEC2026-01422/) |
| Jan 14, 2025 | Mechanical (HVAC) | Voided for inactivity - no inspection within 180 days. Remove and replace Furnace | $2,611 | [MEC2025-00028](https://nearbypermits.com/boulder/permit/MEC2025-00028/) |
| Jan 7, 2015 | Roofing | Total tear-off & reroof of SFD, 13 squares of asphalt shingles on a pitch represented as 8/12. All roof materials shall be installed per manufacturer's specs. Mid-roof inspection required if pitch is less than 4/12. | $5,472 | [PMT2015-00055-RFG](https://nearbypermits.com/boulder/permit/PMT2015-00055-RFG/) |
| Aug 30, 2000 | Fence, wall or deck | Addtion to existing fence | $2,000 | [PMT2000-03593-FEN](https://nearbypermits.com/boulder/permit/PMT2000-03593-FEN/) |
| Jul 26, 2000 | Alteration or repair | Construct deck less than 30 inches in height | $6,500 | [PMT2000-03103](https://nearbypermits.com/boulder/permit/PMT2000-03103/) |

## More on this street

Other addresses on 18th St with permits, nearest house number first:

- [801 18th St](https://nearbypermits.com/boulder/address/801-18th-st/): newest permit Jan 15, 2025
- [823 18th St 3](https://nearbypermits.com/boulder/address/823-18th-st-3/): newest permit Feb 21, 2025
- [765 18th St](https://nearbypermits.com/boulder/address/765-18th-st/): newest permit Jun 17, 2026
- [760 18th St](https://nearbypermits.com/boulder/address/760-18th-st/): newest permit May 14, 2026
- [864 18th St](https://nearbypermits.com/boulder/address/864-18th-st/): newest permit May 12, 2026
- [755 18th St](https://nearbypermits.com/boulder/address/755-18th-st/): newest permit Aug 18, 2026
- [736 18th St](https://nearbypermits.com/boulder/address/736-18th-st/): newest permit Sep 24, 2025
- [709 18th St](https://nearbypermits.com/boulder/address/709-18th-st/): newest permit Mar 16, 2026
- [444 18th St](https://nearbypermits.com/boulder/address/444-18th-st/): newest permit Jun 11, 2026
- [401 18th St](https://nearbypermits.com/boulder/address/401-18th-st/): newest permit May 22, 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 21:49 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/811-18th-st/