# Building permits at 425 Arapahoe Ave, Boulder, CO 425 Arapahoe Ave: demolition permitted Mar 19, 2025, a new building Nov 14, 2025. Five permits here in the last two years. The newest, Nov 14, 2025: REVISION 3/30/26-Revision to the roof configuration at the second floor on the west side of the residence. 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 | |---|---|---|---|---| | Nov 14, 2025 | New building | REVISION 3/30/26-Revision to the roof configuration at the second floor on the west side of the residence. Updated calculations for the solar access fence. REVISION 12/10/25-Building footprint has been expanded by four feet, second story added over the west side of the building. New single-family re | $355,573 | [BLD-SFD2025-00245](https://nearbypermits.com/boulder/permit/BLD-SFD2025-00245/) | | Jun 23, 2025 | Fence, wall or deck | 425 ARAPAHOE AVE - Accessory Structure - Residential Exterior Deck: Related permits: Related permits: WET2025-00004. This is a construction of (1) new exterior deck. The new works includes modification of (E) landscape, new foundation of the deck, new deck, new railing, and planting. The total gross | $7,327 | [BLD-ACC2025-00011](https://nearbypermits.com/boulder/permit/BLD-ACC2025-00011/) | | Jun 5, 2025 | Electrical | Temporary Electric service *See DEM2024-00071* | Not listed | [ELE2025-00455](https://nearbypermits.com/boulder/permit/ELE2025-00455/) | | May 23, 2025 | Fence, wall or deck | 425 Arapahoe Ave Residence - Wetland Permit - Construction of a new wood deck on posts with concrete footings at 425 Arapahoe Ave. This Wetland permit will be part of a larger residential building accessory structure permit for the deck construction. | Not listed | [WET2025-00002](https://nearbypermits.com/boulder/permit/WET2025-00002/) | | Mar 19, 2025 | Demolition | Full Deconstruction of the 1.5 story Residential Building. 1 unit @ 1716 sqft. 2102 sqft of area removed including the deck and porch. | Not listed | [DEM2024-00071](https://nearbypermits.com/boulder/permit/DEM2024-00071/) | ## 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 Arapahoe Ave with permits, nearest house number first: - [416 Arapahoe Ave](https://nearbypermits.com/boulder/address/416-arapahoe-ave/): newest permit Sep 28, 2026 - [468 Arapahoe Ave](https://nearbypermits.com/boulder/address/468-arapahoe-ave/): newest permit Jan 7, 2026 - [479 Arapahoe Ave](https://nearbypermits.com/boulder/address/479-arapahoe-ave/): newest permit Dec 20, 2024 - [484 Arapahoe Ave](https://nearbypermits.com/boulder/address/484-arapahoe-ave/): newest permit Nov 20, 2024 - [338 Arapahoe Ave](https://nearbypermits.com/boulder/address/338-arapahoe-ave/): newest permit Aug 8, 2025 - [336 Arapahoe Ave](https://nearbypermits.com/boulder/address/336-arapahoe-ave/): newest permit Aug 8, 2025 - [334 Arapahoe Ave](https://nearbypermits.com/boulder/address/334-arapahoe-ave/): newest permit Aug 8, 2025 - [521 Arapahoe Ave](https://nearbypermits.com/boulder/address/521-arapahoe-ave/): newest permit Mar 30, 2026 - [522 Arapahoe Ave](https://nearbypermits.com/boulder/address/522-arapahoe-ave/): newest permit Jun 20, 2025 - [531 Arapahoe Ave](https://nearbypermits.com/boulder/address/531-arapahoe-ave/): newest permit Jul 6, 2026 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-09 23:55 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 5 permits at this address: https://nearbypermits.com/boulder/address/425-arapahoe-ave/