# Building permits at 2104 Mapleton Ave, Boulder, CO

10 permits on record here. The newest, Jul 28, 2025: Voided for inactivity - no inspections for 180 days Replace existing Air handler and a/c system with new Air. 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 28, 2025 | Mechanical (HVAC) | Voided for inactivity - no inspections for 180 days Replace existing Air handler and a/c system with new Air handler and 3 ton, 16 SEER a/c system. | $10,080 | [MEC2025-01194](https://nearbypermits.com/boulder/permit/MEC2025-01194/) |
| May 17, 2005 | Plumbing | Construction of a new single-car garage (336 s.f.) with a studio above (266 s.f.). See PMT2004-02765 for permit involving work on residence. | $2,000 | [PMT2004-02766-PLB](https://nearbypermits.com/boulder/permit/PMT2004-02766-PLB/) |
| May 17, 2005 | Mechanical (HVAC) | Construction of a new single-car garage (336 s.f.) with a studio above (266 s.f.). See PMT2004-02765 for permit involving work on residence. | $1,000 | [PMT2004-02766-MEC](https://nearbypermits.com/boulder/permit/PMT2004-02766-MEC/) |
| May 17, 2005 | Electrical | Construction of a new single-car garage (336 s.f.) with a studio above (266 s.f.). See PMT2004-02765 for permit involving work on residence. | $1,000 | [PMT2004-02766-ELE](https://nearbypermits.com/boulder/permit/PMT2004-02766-ELE/) |
| May 17, 2005 | New building | Construction of a new single-car garage (336 s.f.) with a studio above (266 s.f.). See PMT2004-02765 for permit involving work on residence. | $48,479 | [PMT2004-02766](https://nearbypermits.com/boulder/permit/PMT2004-02766/) |
| May 17, 2005 | Plumbing | Basement addition (990 s.f.), first story replacement (1,070 s.f.) and second story replacement (911 s.f.) on the existing 1,114 s.f. home. The total new square footage will be 2,800 s.f. New detached garage/studio by separate permit. | $8,000 | [PMT2004-02765-PLB](https://nearbypermits.com/boulder/permit/PMT2004-02765-PLB/) |
| May 17, 2005 | Mechanical (HVAC) | Basement addition (990 s.f.), first story replacement (1,070 s.f.) and second story replacement (911 s.f.) on the existing 1,114 s.f. home. The total new square footage will be 2,800 s.f. New detached garage/studio by separate permit. | $6,000 | [PMT2004-02765-MEC](https://nearbypermits.com/boulder/permit/PMT2004-02765-MEC/) |
| May 17, 2005 | Electrical | Basement addition (990 s.f.), first story replacement (1,070 s.f.) and second story replacement (911 s.f.) on the existing 1,114 s.f. home. The total new square footage will be 2,800 s.f. New detached garage/studio by separate permit. | $11,500 | [PMT2004-02765-ELE](https://nearbypermits.com/boulder/permit/PMT2004-02765-ELE/) |
| May 17, 2005 | Addition | Basement addition (990 s.f.), first story replacement (1,070 s.f.) and second story replacement (911 s.f.) on the existing 1,114 s.f. home. The total new square footage will be 2,800 s.f. New detached garage/studio by separate permit. | $360,204 | [PMT2004-02765](https://nearbypermits.com/boulder/permit/PMT2004-02765/) |
| Sep 3, 2004 | Demolition | Partial structure demolition. Owner contractor. | Not listed | [PMT2004-03482-DEM](https://nearbypermits.com/boulder/permit/PMT2004-03482-DEM/) |

## More on this street

Other addresses on Mapleton Ave with permits, nearest house number first:

- [2103 Mapleton Ave](https://nearbypermits.com/boulder/address/2103-mapleton-ave/): newest permit May 1, 2025
- [2105 Mapleton Ave](https://nearbypermits.com/boulder/address/2105-mapleton-ave/): newest permit Nov 13, 2024
- [2132 Mapleton Ave](https://nearbypermits.com/boulder/address/2132-mapleton-ave/): newest permit Jun 9, 2026
- [2134 Mapleton Ave](https://nearbypermits.com/boulder/address/2134-mapleton-ave/): newest permit May 1, 2026
- [2137 Mapleton Ave](https://nearbypermits.com/boulder/address/2137-mapleton-ave/): newest permit Oct 8, 2024
- [2053 Mapleton Ave](https://nearbypermits.com/boulder/address/2053-mapleton-ave/): newest permit May 2, 2025
- [2204 Mapleton Ave](https://nearbypermits.com/boulder/address/2204-mapleton-ave/): newest permit Oct 27, 2025
- [2004 Mapleton Ave](https://nearbypermits.com/boulder/address/2004-mapleton-ave/): newest permit Sep 2, 2026
- [2213 Mapleton Ave B](https://nearbypermits.com/boulder/address/2213-mapleton-ave-b/): newest permit Jan 13, 2025
- [2218 Mapleton Ave](https://nearbypermits.com/boulder/address/2218-mapleton-ave/): newest permit Feb 25, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 15:35 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 10 permits at this address: https://nearbypermits.com/boulder/address/2104-mapleton-ave/