# Building permits at 875 33rd St, Boulder, CO

Four permits here in the last two years. The newest, Dec 15, 2025: Add 9 sprinkler heads to new ADU NFPA 13D per drawing dated 8/11/25 (FSN 13D). 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 |
|---|---|---|---|---|
| Dec 15, 2025 | Fire systems | Add 9 sprinkler heads to new ADU NFPA 13D per drawing dated 8/11/25 (FSN 13D) | $7,499 | [FIR2025-00492](https://nearbypermits.com/boulder/permit/FIR2025-00492/) |
| Nov 12, 2025 | Fence, wall or deck | 3/10/26: Revision-siding materials new 638 SQ FT detached accessory dwelling unit (adu), with a 45 SQ FT covered front porch. | $375,000 | [BLD-ACC2025-00081](https://nearbypermits.com/boulder/permit/BLD-ACC2025-00081/) |
| Sep 17, 2025 | Electrical | VOID-180 Days no activity Upgrade electrical service to 200 amps | $3,000 | [ELE2025-00844](https://nearbypermits.com/boulder/permit/ELE2025-00844/) |
| Aug 8, 2025 | New building | This is a new 638 sq ft detached accessory dwelling unit with under 20% (19.3%) coverage in the outer buffer zone. The outer buffer zone is 2,049 sq ft and the ADU coverage is 397 sq ft. This location is to create the most separation between the ADU and principal dwelling for privacy and yard space  | Not listed | [WET2025-00011](https://nearbypermits.com/boulder/permit/WET2025-00011/) |

## More on this street

Other addresses on 33rd St with permits, nearest house number first:

- [855 33rd St](https://nearbypermits.com/boulder/address/855-33rd-st/): newest permit Apr 23, 2026
- [895 33rd St](https://nearbypermits.com/boulder/address/895-33rd-st/): newest permit Dec 6, 2024
- [820 33rd St](https://nearbypermits.com/boulder/address/820-33rd-st/): newest permit Oct 8, 2025
- [780 33rd St](https://nearbypermits.com/boulder/address/780-33rd-st/): newest permit Dec 18, 2024
- [755 33rd St](https://nearbypermits.com/boulder/address/755-33rd-st/): newest permit Jan 8, 2025
- [725 33rd St](https://nearbypermits.com/boulder/address/725-33rd-st/): newest permit Jun 8, 2026
- [710 33rd St](https://nearbypermits.com/boulder/address/710-33rd-st/): newest permit Sep 16, 2026
- [1701 33rd St](https://nearbypermits.com/boulder/address/1701-33rd-st/): newest permit Jun 9, 2026
- [1709 33rd St](https://nearbypermits.com/boulder/address/1709-33rd-st/): newest permit Sep 23, 2026
- [1750 33rd St](https://nearbypermits.com/boulder/address/1750-33rd-st/): newest permit Jan 26, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 01:08 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 4 permits at this address: https://nearbypermits.com/boulder/address/875-33rd-st/