# Building permits at 3525 23rd St, Boulder, CO

Four permits here in the last two years. The newest, Jul 8, 2025: Remove/Replace Furnace and AC. 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 8, 2025 | Mechanical (HVAC) | Remove/Replace Furnace and AC. Installing 80% AFUE, 88000 BTU, 3 Ton, 2 Stage Heat, Variable Speed Upflow/Horizontal Gas Furnace and 2 Ton, Up to 21.10 SEER2, Up to 10.50 HSPF2, 208-230 VAC 1 Ph 60 Hz Variable Capacity Cold Climate Heat Pump. | $9,390 | [MEC2025-01048](https://nearbypermits.com/boulder/permit/MEC2025-01048/) |
| Jul 1, 2025 | Roofing | 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 than asphalt shingles (regardless of pitch).  | $10,934 | [RFG2025-00462](https://nearbypermits.com/boulder/permit/RFG2025-00462/) |
| May 29, 2025 | Electrical | Installation of a flush mount, grid-tied 7.140 kW solar PV system. Reinforcement of roof 1 framing system is required (by separate permit). Trenching will be done for underground electric lines to connect the house and garage. | $17,092 | [ELE2025-00394](https://nearbypermits.com/boulder/permit/ELE2025-00394/) |
| May 29, 2025 | Solar | Structural upgrades to roof framing associated with the installation of a rooftop PV system under ELE2025-00394. | $2,000 | [BLD-SFD2025-00214](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00214/) |

## More on this street

Other addresses on 23rd St with permits, nearest house number first:

- [3515 23rd St](https://nearbypermits.com/boulder/address/3515-23rd-st/): newest permit Apr 30, 2026
- [3505 23rd St](https://nearbypermits.com/boulder/address/3505-23rd-st/): newest permit Jan 2, 2026
- [3445 23rd St](https://nearbypermits.com/boulder/address/3445-23rd-st/): newest permit Jul 3, 2025
- [3333 23rd St](https://nearbypermits.com/boulder/address/3333-23rd-st/): newest permit May 5, 2025
- [3165 23rd St](https://nearbypermits.com/boulder/address/3165-23rd-st/): newest permit Aug 18, 2026
- [3145 23rd St](https://nearbypermits.com/boulder/address/3145-23rd-st/): newest permit Sep 26, 2025
- [3140 23rd St](https://nearbypermits.com/boulder/address/3140-23rd-st/): newest permit Jun 3, 2026
- [3125 23rd St](https://nearbypermits.com/boulder/address/3125-23rd-st/): newest permit Sep 8, 2025
- [3105 23rd St](https://nearbypermits.com/boulder/address/3105-23rd-st/): newest permit Jun 30, 2026
- [3060 23rd St](https://nearbypermits.com/boulder/address/3060-23rd-st/): newest permit Oct 21, 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 10:12 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 4 permits at this address: https://nearbypermits.com/boulder/address/3525-23rd-st/