# Building permits at 120 30th St, Boulder, CO

Nine permits on record here. The newest, Feb 6: Permit is to convert portion of existing SFD home to ADU. 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 |
|---|---|---|---|---|
| Feb 6, 2026 | Alteration or repair | Permit is to convert portion of existing SFD home to ADU. Unit will be within the building envelope and consist of a living room, a previously permitted bathroom, a kitchen with a previously permitted bar sink and a bedroom. There is a lockable separation between the ADU and the principal residence. | $8,368 | [BLD-SFD2025-00277](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00277/) |
| Mar 14, 2018 | Electrical | Installation of a new, flush-mounted, grid-tied, 4.225 kW DC photovoltaic system, utilizing single-phase inverters for rapid shut down, on an existing single-family dwelling. Installation per the Tesla Engineer's specifications. No structural reinforcement proposed. | Not listed | [PMT2018-00970-ELE](https://nearbypermits.com/boulder/permit/PMT2018-00970-ELE/) |
| Jul 17, 2015 | Plumbing | Owner, General Contractor for non-structural kitchen remodel (85 sq.ft.). Scope of work includes replacing: cabinets, countertops, and other finishes. Scope of work also includes associated MEPs to include kitchen sink replacement. | $400 | [PMT2015-02909-PLB](https://nearbypermits.com/boulder/permit/PMT2015-02909-PLB/) |
| Jul 17, 2015 | Mechanical (HVAC) | Owner, General Contractor for non-structural kitchen remodel (85 sq.ft.). Scope of work includes replacing: cabinets, countertops, and other finishes. Scope of work also includes associated MEPs to include kitchen sink replacement. | $200 | [PMT2015-02909-MEC](https://nearbypermits.com/boulder/permit/PMT2015-02909-MEC/) |
| Jul 17, 2015 | Electrical | Owner, General Contractor for non-structural kitchen remodel (85 sq.ft.). Scope of work includes replacing: cabinets, countertops, and other finishes. Scope of work also includes associated MEPs to include kitchen sink replacement. | $200 | [PMT2015-02909-ELE](https://nearbypermits.com/boulder/permit/PMT2015-02909-ELE/) |
| Oct 16, 2008 | Plumbing | Mechanical and plumbing permits to facilitate restoration of single-family residnece status by removing and disabling gas line for stove, and after-the-fact permit for bathroom. | $150 | [PMT2008-04600-PLB](https://nearbypermits.com/boulder/permit/PMT2008-04600-PLB/) |
| Oct 16, 2008 | Mechanical (HVAC) | Mechanical and plumbing permits to facilitate restoration of single-family residnece status by removing and disabling gas line for stove, and after-the-fact permit for bathroom. | $150 | [PMT2008-04600-MEC](https://nearbypermits.com/boulder/permit/PMT2008-04600-MEC/) |
| Nov 18, 1998 | Addition | 2 Story addition the original general permit number is 987919. | $38,000 | [PMT1998-07919](https://nearbypermits.com/boulder/permit/PMT1998-07919/) |
| Feb 26, 1988 | Mechanical (HVAC) | Mechanical replace furnace | $1,100 | [PMT1988-M6768-MEC](https://nearbypermits.com/boulder/permit/PMT1988-M6768-MEC/) |

## More on this street

Other addresses on 30th St with permits, nearest house number first:

- [255 30th St](https://nearbypermits.com/boulder/address/255-30th-st/): newest permit Sep 23, 2026
- [270 30th St](https://nearbypermits.com/boulder/address/270-30th-st/): newest permit Sep 11, 2025
- [305 30th St](https://nearbypermits.com/boulder/address/305-30th-st/): newest permit Sep 2, 2025
- [320 30th St](https://nearbypermits.com/boulder/address/320-30th-st/): newest permit Jul 3, 2025
- [340 30th St](https://nearbypermits.com/boulder/address/340-30th-st/): newest permit Mar 6, 2025
- [345 30th St](https://nearbypermits.com/boulder/address/345-30th-st/): newest permit Dec 10, 2024
- [555 30th St](https://nearbypermits.com/boulder/address/555-30th-st/): newest permit Jul 14, 2026
- [730 30th St](https://nearbypermits.com/boulder/address/730-30th-st/): newest permit Mar 25, 2026
- [840 30th St](https://nearbypermits.com/boulder/address/840-30th-st/): newest permit Mar 10, 2025
- [890 30th St](https://nearbypermits.com/boulder/address/890-30th-st/): newest permit Aug 24, 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 20:46 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 9 permits at this address: https://nearbypermits.com/boulder/address/120-30th-st/