# Building permits at 3400 Arapahoe Ave, Boulder, CO 23 permits on record here. The newest, Feb 21, 2025: Water heater replacement Any electrical work required beyond a like-for-like replacement of equipment will. 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 | |---|---|---|---|---| | Feb 21, 2025 | Mechanical (HVAC) | water heater replacement Any electrical work required beyond a like-for-like replacement of equipment will require an electrical permit for inspection of the electrical scope. | $5,700 | [MEC2025-00271](https://nearbypermits.com/boulder/permit/MEC2025-00271/) | | Mar 17, 2020 | Sign | Installation of a replacement internally illuminated wall sign "Comfort dental" (Hard copy submittal) | $5,576 | [SGN2020-00016](https://nearbypermits.com/boulder/permit/SGN2020-00016/) | | Oct 31, 2019 | Electrical | Addition/replacement of new front parapet /awning facade on a dental clinic exterior facade. New elements to include exterior lighting in soffit. Associated with previous approval of PMT2017-05415-FLD. | $800 | [ELE2019-01278](https://nearbypermits.com/boulder/permit/ELE2019-01278/) | | Oct 31, 2019 | Alteration or repair | Addition/replacement of new front parapet /awning facade on a dental clinic exterior facade. New elements to include exterior lighting in soffit. Associated with previous approval of PMT2017-05415-FLD. No review of signage associated with this permit. | $39,000 | [BLD-NRE2019-00195](https://nearbypermits.com/boulder/permit/BLD-NRE2019-00195/) | | Oct 29, 2019 | Alteration or repair | Exterior parapet and siding/canopy update for a dental clinic. Scope includes exterior lighting upgrades. | $20,000 | [PMT2017-05415-FLD](https://nearbypermits.com/boulder/permit/PMT2017-05415-FLD/) | | May 16, 2018 | Alteration or repair | Exterior parapet and siding/canopy update for a dental clinic. Scope includes exterior lighting upgrades. | $18,000 | [PMT2017-05415-SDG](https://nearbypermits.com/boulder/permit/PMT2017-05415-SDG/) | | May 16, 2018 | Electrical | Exterior parapet and siding/canopy update for a dental clinic. Scope includes exterior lighting upgrades. | $2,000 | [PMT2017-05415-ELE](https://nearbypermits.com/boulder/permit/PMT2017-05415-ELE/) | | Sep 2, 2005 | Sign | New, internally illuminated wall sign reading "Comfort Dental". | $4,823 | [PMT2005-03209-SGN](https://nearbypermits.com/boulder/permit/PMT2005-03209-SGN/) | | Jun 21, 2005 | Plumbing | 2,256 square foot tenant remodel for dentists office. | $10,000 | [PMT2005-01798-PLB](https://nearbypermits.com/boulder/permit/PMT2005-01798-PLB/) | | Jun 21, 2005 | Mechanical (HVAC) | 2,256 square foot tenant remodel for dentists office. | $3,500 | [PMT2005-01798-MEC](https://nearbypermits.com/boulder/permit/PMT2005-01798-MEC/) | | Jun 21, 2005 | Alteration or repair | 2,256 square foot tenant remodel for dentists office. | Not listed | [PMT2005-01798-FLD](https://nearbypermits.com/boulder/permit/PMT2005-01798-FLD/) | | Jun 21, 2005 | Electrical | 2,256 square foot tenant remodel for dentists office. | $12,000 | [PMT2005-01798-ELE](https://nearbypermits.com/boulder/permit/PMT2005-01798-ELE/) | | Jun 21, 2005 | Alteration or repair | 2,256 square foot tenant remodel for dentists office. | $50,000 | [PMT2005-01798](https://nearbypermits.com/boulder/permit/PMT2005-01798/) | | Jan 23, 2004 | Sign | Install wall sign "Buff Deli" | $280 | [PMT2004-00154-SGN](https://nearbypermits.com/boulder/permit/PMT2004-00154-SGN/) | | Dec 13, 1993 | Alteration or repair | One shed roof awning the original general permit number is 939255. | $1,250 | [PMT1993-09255](https://nearbypermits.com/boulder/permit/PMT1993-09255/) | | Sep 7, 1988 | Sign | Sign temp banner two days | Not listed | [PMT1988-N0938-SGN](https://nearbypermits.com/boulder/permit/PMT1988-N0938-SGN/) | | Sep 7, 1988 | Sign | Sign elec sign | $800 | [PMT1988-N0926-SGN](https://nearbypermits.com/boulder/permit/PMT1988-N0926-SGN/) | | Sep 7, 1988 | Electrical | Electrical hookup elec sign | $180 | [PMT1988-N0914-ELE](https://nearbypermits.com/boulder/permit/PMT1988-N0914-ELE/) | | Jun 14, 1988 | Alteration or repair | Remodel & roof. The original general permit number is m8956. | $16,250 | [PMT1988-M8956](https://nearbypermits.com/boulder/permit/PMT1988-M8956/) | | Jun 2, 1988 | Roofing | Roofing REROOF | $3,023 | [PMT1988-M8645-RFG](https://nearbypermits.com/boulder/permit/PMT1988-M8645-RFG/) | | Jun 1, 1988 | Mechanical (HVAC) | Mechanical vent equip & f a furnace | $5,070 | [PMT1988-M8627-MEC](https://nearbypermits.com/boulder/permit/PMT1988-M8627-MEC/) | | Jun 1, 1988 | Demolition | Demolition DEMO MANSARD | Not listed | [PMT1988-M8618-DEM](https://nearbypermits.com/boulder/permit/PMT1988-M8618-DEM/) | | Mar 22, 1988 | Sign | Sign elec sign | $950 | [PMT1988-N7129-SGN](https://nearbypermits.com/boulder/permit/PMT1988-N7129-SGN/) | ## 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: - [3401 Arapahoe Ave 101](https://nearbypermits.com/boulder/address/3401-arapahoe-ave-101/): newest permit Jul 13, 2026 - [3350 Arapahoe Ave](https://nearbypermits.com/boulder/address/3350-arapahoe-ave/): newest permit Apr 16, 2026 - [3301 Arapahoe Ave 101](https://nearbypermits.com/boulder/address/3301-arapahoe-ave-101/): newest permit Apr 6, 2026 - [3289 Arapahoe Ave](https://nearbypermits.com/boulder/address/3289-arapahoe-ave/): newest permit Jul 29, 2025 - [3550 Arapahoe Ave](https://nearbypermits.com/boulder/address/3550-arapahoe-ave/): newest permit Oct 23, 2025 - [3555 Arapahoe Ave](https://nearbypermits.com/boulder/address/3555-arapahoe-ave/): newest permit Aug 20, 2026 - [3223 Arapahoe Ave](https://nearbypermits.com/boulder/address/3223-arapahoe-ave/): newest permit Jun 22, 2026 - [3216 Arapahoe Ave](https://nearbypermits.com/boulder/address/3216-arapahoe-ave/): newest permit Feb 26, 2025 - [3601 Arapahoe Ave 207](https://nearbypermits.com/boulder/address/3601-arapahoe-ave-207/): newest permit Nov 24, 2025 - [3701 Arapahoe Ave](https://nearbypermits.com/boulder/address/3701-arapahoe-ave/): newest permit Jul 29, 2026 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-16 03:24 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 23 permits at this address: https://nearbypermits.com/boulder/address/3400-arapahoe-ave/