# Building permits at 1620 Walnut St, Boulder, CO

Six permits on record here. The newest, May 13, 2025: 266 sf interior only remodel of each unit 1-4 and common space. 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 |
|---|---|---|---|---|
| May 13, 2025 | Alteration or repair | 266 sf interior only remodel of each unit 1-4 and common space. | $50,000 | [BLD-MFD2025-00005](https://nearbypermits.com/boulder/permit/BLD-MFD2025-00005/) |
| Mar 9, 2017 | Mechanical (HVAC) | *Voided for inactivity due to no inspections performed within 180 days of issuance* Replacement Forced Air Furnace | $2,429 | [PMT2017-20109-MEC](https://nearbypermits.com/boulder/permit/PMT2017-20109-MEC/) |
| Mar 9, 2017 | Mechanical (HVAC) | *Voided for inactivity due to no inspections performed within 180 days of issuance* Replacement Forced Air Furnace | $2,429 | [PMT2017-20108-MEC](https://nearbypermits.com/boulder/permit/PMT2017-20108-MEC/) |
| Jan 4, 2011 | Roofing | Remove existing shingles and re-roof multi-family residence with Estate Gray owens corning dimensional shingles. 21 squares, roof pitch represented by contractor to be 12:12. | $13,000 | [PMT2011-00040-RFG](https://nearbypermits.com/boulder/permit/PMT2011-00040-RFG/) |
| Mar 6, 2001 | Roofing | Tear off and reroof with 3 tab | $3,600 | [PMT2001-00751-RFG](https://nearbypermits.com/boulder/permit/PMT2001-00751-RFG/) |
| Feb 10, 2000 | Roofing | Reroof existing accessory (carriage house) building and repair roof on the principal building. Tear to deck and install new decking a 3 tab shingles on 7/12 pitch. 5 squares. | $673 | [PMT2000-00611-RFG](https://nearbypermits.com/boulder/permit/PMT2000-00611-RFG/) |

## More on this street

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

- [1634 Walnut St C](https://nearbypermits.com/boulder/address/1634-walnut-st-c/): newest permit Sep 24, 2026
- [1603 Walnut St](https://nearbypermits.com/boulder/address/1603-walnut-st/): newest permit Jul 20, 2026
- [1655 Walnut St 301](https://nearbypermits.com/boulder/address/1655-walnut-st-301/): newest permit Jan 15, 2026
- [1545 Walnut St](https://nearbypermits.com/boulder/address/1545-walnut-st/): newest permit Jun 9, 2025
- [1707 Walnut St 106](https://nearbypermits.com/boulder/address/1707-walnut-st-106/): newest permit May 28, 2026
- [1708 Walnut St](https://nearbypermits.com/boulder/address/1708-walnut-st/): newest permit Feb 21, 2025
- [1726 Walnut St](https://nearbypermits.com/boulder/address/1726-walnut-st/): newest permit Oct 17, 2025
- [1734 Walnut St](https://nearbypermits.com/boulder/address/1734-walnut-st/): newest permit Oct 2, 2025
- [1743 Walnut St](https://nearbypermits.com/boulder/address/1743-walnut-st/): newest permit Apr 15, 2025
- [1470 Walnut St](https://nearbypermits.com/boulder/address/1470-walnut-st/): newest permit Mar 20, 2026

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 05:43 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/1620-walnut-st/