# Building permits at 4300 Darley Ave, Boulder, CO

Six permits on record here. The newest, Jul 24, 2025: Installation of rooftop mounted photovoltaic solar system. 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 24, 2025 | Electrical | Installation of rooftop mounted photovoltaic solar system. Installation of energy storage system. | $5,890 | [ELE2025-00618](https://nearbypermits.com/boulder/permit/ELE2025-00618/) |
| Aug 10, 2023 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* add a gas regulator for the fireplace and one in the mechanical room. note: Xcel is also going to upsize the meter as well to support this (2 pound meter) | $3,700 | [MEC2023-01181](https://nearbypermits.com/boulder/permit/MEC2023-01181/) |
| Jun 7, 2023 | Electrical | *Voided for inactivity - no inspections within 180 days* Run new 240v circuit and install disconnect for mini split | $800 | [ELE2023-00572](https://nearbypermits.com/boulder/permit/ELE2023-00572/) |
| Nov 18, 2021 | Alteration or repair | Install 1 new egress window with a straight down cut on an existing window to make a basement bedroom code compliant | $4,000 | [BLD-SFD2021-00585](https://nearbypermits.com/boulder/permit/BLD-SFD2021-00585/) |
| Jun 12, 2003 | New building | Construct new two level deck on rear of existing single family dwelling. | $4,850 | [PMT2003-02318](https://nearbypermits.com/boulder/permit/PMT2003-02318/) |
| Oct 31, 2002 | New building | New 6' deep, 9' wide front porch. As drawn, meets front porch ordinance. Owner contractor. | $4,000 | [PMT2002-04742](https://nearbypermits.com/boulder/permit/PMT2002-04742/) |

## 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:

- [4305 Darley Ave](https://nearbypermits.com/boulder/address/4305-darley-ave/): newest permit Jul 31, 2025
- [4330 Darley Ave](https://nearbypermits.com/boulder/address/4330-darley-ave/): newest permit Mar 6, 2025
- [4250 Darley Ave](https://nearbypermits.com/boulder/address/4250-darley-ave/): newest permit Aug 5, 2025
- [4395 Darley Ave](https://nearbypermits.com/boulder/address/4395-darley-ave/): newest permit Jul 8, 2026
- [4400 Darley Ave](https://nearbypermits.com/boulder/address/4400-darley-ave/): newest permit Jun 4, 2026
- [4435 Darley Ave](https://nearbypermits.com/boulder/address/4435-darley-ave/): newest permit Nov 26, 2025
- [4465 Darley Ave](https://nearbypermits.com/boulder/address/4465-darley-ave/): newest permit Aug 17, 2026
- [4495 Darley Ave](https://nearbypermits.com/boulder/address/4495-darley-ave/): newest permit Oct 5, 2026
- [4095 Darley Ave](https://nearbypermits.com/boulder/address/4095-darley-ave/): newest permit May 20, 2026
- [4065 Darley Ave](https://nearbypermits.com/boulder/address/4065-darley-ave/): newest permit Feb 18, 2025

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 09:03 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 6 permits at this address: https://nearbypermits.com/boulder/address/4300-darley-ave/