# Building permits at 18 Benthaven Pl, Boulder, CO 11 permits on record here. The newest, Apr 6: Replace existing AC - new 2 ton 15 SEER2 AC. 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 | |---|---|---|---|---| | Apr 6, 2026 | Mechanical (HVAC) | Replace existing AC - new 2 ton 15 SEER2 AC, like for like same locations PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evi | $7,338 | [MEC2026-00510](https://nearbypermits.com/boulder/permit/MEC2026-00510/) | | Jan 8, 2026 | Mechanical (HVAC) | Replace furnace - new 60K 80% furnace PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic glued vents for fuel burning appliances must undergo pressure testing. To facilitate the inspection process, please provide photographic evidence of the pressure test directly | $5,700 | [MEC2026-00015](https://nearbypermits.com/boulder/permit/MEC2026-00015/) | | Oct 14, 2019 | Roofing | *Tear off and re roof, Certainteed presidential, 21 sq architectural shingles, 5:12 pitch. Permit to reinstall PV under ELE2019-01570. | $5,250 | [RFG2019-01047](https://nearbypermits.com/boulder/permit/RFG2019-01047/) | | Oct 14, 2019 | Electrical | Re-installation of PV system following reroof under RFG2019-01047. | $1,200 | [ELE2019-01570](https://nearbypermits.com/boulder/permit/ELE2019-01570/) | | May 14, 2010 | Electrical | Installation of 4.84 kw flush-mounted, rooftop, photovoltaic solar system. | $24,000 | [PMT2010-01822-ELE](https://nearbypermits.com/boulder/permit/PMT2010-01822-ELE/) | | Jun 10, 2009 | Plumbing | Sunroom (greenhouse) addition & heat sink of 36 sf & installation of solar thermal panels and heat exchanger coils in buried 55 gallon drums. Fluid system must be isolated from domestic water system. | $500 | [PMT2009-01583-PLB](https://nearbypermits.com/boulder/permit/PMT2009-01583-PLB/) | | Jun 10, 2009 | Mechanical (HVAC) | Sunroom (greenhouse) addition & heat sink of 36 sf & installation of solar thermal panels and heat exchanger coils in buried 55 gallon drums. Fluid system must be isolated from domestic water system. | $4,500 | [PMT2009-01583-MEC](https://nearbypermits.com/boulder/permit/PMT2009-01583-MEC/) | | Jun 10, 2009 | Addition | Sunroom (greenhouse) addition & heat sink of 36 sf & installation of solar thermal panels and heat exchanger coils in buried 55 gallon drums. Fluid system must be isolated from domestic water system. | $1,098 | [PMT2009-01583](https://nearbypermits.com/boulder/permit/PMT2009-01583/) | | Dec 4, 2006 | Alteration or repair | Turn fireplace into bay window | $3,500 | [PMT2006-05120](https://nearbypermits.com/boulder/permit/PMT2006-05120/) | | May 25, 2001 | Alteration or repair | Install two new skylights and two sidelights in an existing townhome. Also construct new floor adjacent to fireplace to level existing pit. | $1,000 | [PMT2001-02167](https://nearbypermits.com/boulder/permit/PMT2001-02167/) | | Mar 1, 2000 | Roofing | tear-off and re-roof | $2,981 | [PMT2000-00852-RFG](https://nearbypermits.com/boulder/permit/PMT2000-00852-RFG/) | ## More on this street Other addresses on Benthaven Pl with permits, nearest house number first: - [19 Benthaven Pl](https://nearbypermits.com/boulder/address/19-benthaven-pl/): newest permit Dec 12, 2024 - [16 Benthaven Pl](https://nearbypermits.com/boulder/address/16-benthaven-pl/): newest permit May 12, 2025 - [20 Benthaven Pl](https://nearbypermits.com/boulder/address/20-benthaven-pl/): newest permit Jul 15, 2026 - [21 Benthaven Pl](https://nearbypermits.com/boulder/address/21-benthaven-pl/): newest permit Dec 26, 2024 - [12 Benthaven Pl](https://nearbypermits.com/boulder/address/12-benthaven-pl/): newest permit Nov 12, 2025 - [24 Benthaven Pl](https://nearbypermits.com/boulder/address/24-benthaven-pl/): newest permit Apr 9, 2025 - [29 Benthaven Pl](https://nearbypermits.com/boulder/address/29-benthaven-pl/): newest permit Dec 20, 2024 - [6 Benthaven Pl](https://nearbypermits.com/boulder/address/6-benthaven-pl/): newest permit Sep 24, 2025 - [5 Benthaven Pl](https://nearbypermits.com/boulder/address/5-benthaven-pl/): newest permit May 21, 2026 - [32 Benthaven Pl](https://nearbypermits.com/boulder/address/32-benthaven-pl/): newest permit Nov 14, 2024 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 01:59 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 11 permits at this address: https://nearbypermits.com/boulder/address/18-benthaven-pl/