# Building permits at 235 31st St, Boulder, CO

Two permits here in the last two years. The newest, Mar 9: (Ref# his2026-00049) remove & replace (13) squares of siding with james hardie plank lap siding - colors. 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 |
|---|---|---|---|---|
| Mar 9, 2026 | Alteration or repair | (Ref# his2026-00049) remove & replace (13) squares of siding with james hardie plank lap siding - colors: evening blue & iron gray - removing & replacing all vertical siding | $17,076 | [SDG2026-00007](https://nearbypermits.com/boulder/permit/SDG2026-00007/) |
| Apr 15, 2025 | Roofing | Total tear-off & reroof of SFD, 32 squares of dimensional shingles on a pitch represented as 4/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other than asphalt shingles (regardless of pitch).  | $11,200 | [RFG2025-00225](https://nearbypermits.com/boulder/permit/RFG2025-00225/) |

## More on this street

Other addresses on 31st St with permits, nearest house number first:

- [225 31st St](https://nearbypermits.com/boulder/address/225-31st-st/): newest permit Aug 28, 2026
- [260 31st St](https://nearbypermits.com/boulder/address/260-31st-st/): newest permit Jul 21, 2025
- [270 31st St](https://nearbypermits.com/boulder/address/270-31st-st/): newest permit Jun 11, 2026
- [320 31st St](https://nearbypermits.com/boulder/address/320-31st-st/): newest permit Nov 6, 2024
- [330 31st St](https://nearbypermits.com/boulder/address/330-31st-st/): newest permit Oct 8, 2025
- [137 31st St](https://nearbypermits.com/boulder/address/137-31st-st/): newest permit Jul 29, 2025
- [701 31st St](https://nearbypermits.com/boulder/address/701-31st-st/): newest permit Jul 21, 2026
- [765 31st St](https://nearbypermits.com/boulder/address/765-31st-st/): newest permit Oct 24, 2024
- [780 31st St](https://nearbypermits.com/boulder/address/780-31st-st/): newest permit Dec 1, 2025
- [2255 31st St](https://nearbypermits.com/boulder/address/2255-31st-st/): newest permit Jul 31, 2026

---
Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 20:14 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Both permits at this address: https://nearbypermits.com/boulder/address/235-31st-st/