# Building permits at 2820 21st St, Boulder, CO

Seven permits on record here. The newest, Jul 28: All Structures must be permitted separately Total tear-off & reroof of SFD. 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 28, 2026 | Roofing | All Structures must be permitted separately Total tear-off & reroof of SFD, _35squares 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 t | $15,359 | [RFG2026-00680](https://nearbypermits.com/boulder/permit/RFG2026-00680/) |
| Jan 14, 2002 | Fence, wall or deck | Construct new 7 foot high cedar fence with the top being 1 foot of lattice. | $3,715 | [PMT2002-00136-FEN](https://nearbypermits.com/boulder/permit/PMT2002-00136-FEN/) |
| Jun 12, 2001 | Plumbing | Second story addition for master bed and bath, 2 car garage addition, and family room addition to rear of single family detached residence. | $7,500 | [PMT2001-01836-PLB](https://nearbypermits.com/boulder/permit/PMT2001-01836-PLB/) |
| Jun 12, 2001 | Mechanical (HVAC) | Second story addition for master bed and bath, 2 car garage addition, and family room addition to rear of single family detached residence. | $10,000 | [PMT2001-01836-MEC](https://nearbypermits.com/boulder/permit/PMT2001-01836-MEC/) |
| Jun 12, 2001 | Electrical | Second story addition for master bed and bath, 2 car garage addition, and family room addition to rear of single family detached residence. | $20,000 | [PMT2001-01836-ELE](https://nearbypermits.com/boulder/permit/PMT2001-01836-ELE/) |
| Jun 12, 2001 | Addition | Second story addition for master bed and bath, 2 car garage addition, and family room addition to rear of single family detached residence. | $180,000 | [PMT2001-01836](https://nearbypermits.com/boulder/permit/PMT2001-01836/) |
| Apr 18, 2001 | Demolition | Interior non-structural demolition only | Not listed | [PMT2001-01412-DEM](https://nearbypermits.com/boulder/permit/PMT2001-01412-DEM/) |

## 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 21st St with permits, nearest house number first:

- [2860 21st St](https://nearbypermits.com/boulder/address/2860-21st-st/): newest permit Aug 18, 2026
- [2881 21st St](https://nearbypermits.com/boulder/address/2881-21st-st/): newest permit Sep 23, 2026
- [2921 21st St](https://nearbypermits.com/boulder/address/2921-21st-st/): newest permit Oct 7, 2025
- [2941 21st St](https://nearbypermits.com/boulder/address/2941-21st-st/): newest permit Nov 18, 2025
- [2980 21st St](https://nearbypermits.com/boulder/address/2980-21st-st/): newest permit Jul 20, 2026
- [2327 21st St](https://nearbypermits.com/boulder/address/2327-21st-st/): newest permit Aug 25, 2026
- [2225 21st St](https://nearbypermits.com/boulder/address/2225-21st-st/): newest permit Apr 9, 2026
- [3621 21st St](https://nearbypermits.com/boulder/address/3621-21st-st/): newest permit Jun 24, 2026
- [3633 21st St](https://nearbypermits.com/boulder/address/3633-21st-st/): newest permit Oct 10, 2024
- [3639 21st St](https://nearbypermits.com/boulder/address/3639-21st-st/): newest permit Dec 6, 2024

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 17:12 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/2820-21st-st/