# Building permits at 3505 Darley Ave, Boulder, CO

Seven permits on record here. The newest, Apr 1: 65 Gallon Navien Heat Pump Hybrid Water Heater Dedicated Electrical Circuit Trane 2 Stage Variable Speed. 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 |
|---|---|---|---|---|
| Apr 1, 2026 | Mechanical (HVAC) | 65 Gallon Navien Heat Pump Hybrid Water Heater Dedicated Electrical Circuit Trane 2 Stage Variable Speed Furnace 80k BTU Trane 17 SEER2 Heat Pump AC Coil and Condenser PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must u | $11,500 | [MEC2026-00488](https://nearbypermits.com/boulder/permit/MEC2026-00488/) |
| Jun 14, 2013 | Mechanical (HVAC) | Installation of a new a/c unit, line set and duct heat exchanger. Includes associated electrical work. | $3,500 | [PMT2013-02474-MEC](https://nearbypermits.com/boulder/permit/PMT2013-02474-MEC/) |
| Jun 14, 2013 | Electrical | Installation of a new a/c unit, line set and duct heat exchanger. Includes associated electrical work. | $300 | [PMT2013-02474-ELE](https://nearbypermits.com/boulder/permit/PMT2013-02474-ELE/) |
| Dec 2, 2010 | Alteration or repair | Replacement of window with new header in living room per engineered design. | $3,756 | [PMT2010-05363](https://nearbypermits.com/boulder/permit/PMT2010-05363/) |
| Jan 6, 2005 | Fence, wall or deck | New 4 foot chain link fence. | $1,300 | [PMT2005-00068-FEN](https://nearbypermits.com/boulder/permit/PMT2005-00068-FEN/) |
| Sep 21, 2004 | Electrical | New 163 square foot deck in rear yard. Install two exterior lights and move one interior receptical. Owner contractor. | $500 | [PMT2004-03669-ELE](https://nearbypermits.com/boulder/permit/PMT2004-03669-ELE/) |
| Sep 21, 2004 | New building | New 163 square foot deck in rear yard. Install two exterior lights and move one interior receptical. Owner contractor. | $3,512 | [PMT2004-03669](https://nearbypermits.com/boulder/permit/PMT2004-03669/) |

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

- [3555 Darley Ave](https://nearbypermits.com/boulder/address/3555-darley-ave/): newest permit May 5, 2025
- [3335 Darley Ave](https://nearbypermits.com/boulder/address/3335-darley-ave/): newest permit Aug 5, 2025
- [3705 Darley Ave](https://nearbypermits.com/boulder/address/3705-darley-ave/): newest permit Aug 25, 2026
- [3710 Darley Ave](https://nearbypermits.com/boulder/address/3710-darley-ave/): newest permit Jun 15, 2026
- [3295 Darley Ave](https://nearbypermits.com/boulder/address/3295-darley-ave/): newest permit Sep 8, 2026
- [3210 Darley Ave](https://nearbypermits.com/boulder/address/3210-darley-ave/): newest permit Jun 23, 2026
- [3865 Darley Ave](https://nearbypermits.com/boulder/address/3865-darley-ave/): newest permit Nov 13, 2025
- [3890 Darley Ave](https://nearbypermits.com/boulder/address/3890-darley-ave/): newest permit Aug 3, 2026
- [3095 Darley Ave](https://nearbypermits.com/boulder/address/3095-darley-ave/): newest permit Jun 30, 2026
- [3930 Darley Ave](https://nearbypermits.com/boulder/address/3930-darley-ave/): newest permit Jul 21, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 18:19 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 7 permits at this address: https://nearbypermits.com/boulder/address/3505-darley-ave/