# Building permits at 4605 Nassau Pl, Boulder, CO 13 permits on record here. The newest, Sep 11, 2025: VOID-180 Days No Activity Replacement of existing furnace and A/C with a furnace and heat pump All new. 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 | |---|---|---|---|---| | Sep 11, 2025 | Mechanical (HVAC) | VOID-180 Days No Activity Replacement of existing furnace and A/C with a furnace and heat pump 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 to the assign | $11,080 | [MEC2025-01499](https://nearbypermits.com/boulder/permit/MEC2025-01499/) | | Aug 21, 2023 | Mechanical (HVAC) | *Voided for inactivity - no inspections within 180 days* Set and vent Ortal Lyric 140 Front facing gas fireplace like for like swap into remodel | $7,000 | [MEC2023-01253](https://nearbypermits.com/boulder/permit/MEC2023-01253/) | | Jun 13, 2023 | Alteration or repair | Kitchen Remodel. Primarily Alteration Level 1 with ~380sf of Alteration Level 2 where a couple of walls are moving between kitchen and dining room. Additionally, the existing gas fireplace will be replaced and a new surround built. | $166,500 | [BLD-SFD2023-00167](https://nearbypermits.com/boulder/permit/BLD-SFD2023-00167/) | | Feb 21, 2013 | Electrical | Saw-cut the existing foundation at the NE corner of the basement to allow conversion of a window into a doorway -- see engineer's documentation for specific details -- and construct a small retaining wall with fence at the exterior side of the doorway to create an exterior landing and ramp. | Not listed | [PMT2013-00790-ELE](https://nearbypermits.com/boulder/permit/PMT2013-00790-ELE/) | | Feb 21, 2013 | Alteration or repair | Saw-cut the existing foundation at the NE corner of the basement to allow conversion of a window into a doorway -- see engineer's documentation for specific details -- and construct a small retaining wall with fence at the exterior side of the doorway to create an exterior landing and ramp. | $12,000 | [PMT2013-00790](https://nearbypermits.com/boulder/permit/PMT2013-00790/) | | Apr 25, 2007 | Plumbing | Basement finish of approximately 850 sf to include 90 sf "office", 400 sf recreation room, 175 sf bedroom, and full bath. Approximately 275 sf. of space to remain unfinished storage. Relocate gas line & associated mechanical - new duct work. No new coverage. | $2,950 | [PMT2007-01486-PLB](https://nearbypermits.com/boulder/permit/PMT2007-01486-PLB/) | | Apr 25, 2007 | Mechanical (HVAC) | Basement finish of approximately 850 sf to include 90 sf "office", 400 sf recreation room, 175 sf bedroom, and full bath. Approximately 275 sf. of space to remain unfinished storage. Relocate gas line & associated mechanical - new duct work. No new coverage. | $2,180 | [PMT2007-01486-MEC](https://nearbypermits.com/boulder/permit/PMT2007-01486-MEC/) | | Apr 25, 2007 | Electrical | Basement finish of approximately 850 sf to include 90 sf "office", 400 sf recreation room, 175 sf bedroom, and full bath. Approximately 275 sf. of space to remain unfinished storage. Relocate gas line & associated mechanical - new duct work. No new coverage. | $2,050 | [PMT2007-01486-ELE](https://nearbypermits.com/boulder/permit/PMT2007-01486-ELE/) | | Apr 25, 2007 | Alteration or repair | Basement finish of approximately 850 sf to include 90 sf "office", 400 sf recreation room, 175 sf bedroom, and full bath. Approximately 275 sf. of space to remain unfinished storage. Relocate gas line & associated mechanical - new duct work. No new coverage. | $30,140 | [PMT2007-01486](https://nearbypermits.com/boulder/permit/PMT2007-01486/) | | Jun 13, 2003 | Mechanical (HVAC) | New 3 1/2 ton comfort cooling unit. | $2,800 | [PMT2003-02238-MEC](https://nearbypermits.com/boulder/permit/PMT2003-02238-MEC/) | | Jun 13, 2003 | Electrical | New 3 1/2 ton comfort cooling unit. | $200 | [PMT2003-02238-ELE](https://nearbypermits.com/boulder/permit/PMT2003-02238-ELE/) | | Aug 29, 2002 | Addition | Addition of 168 sq.ft. to second floor uncovered deck (to utilize existing footers 4-feet in depth) | $1,800 | [PMT2002-03813](https://nearbypermits.com/boulder/permit/PMT2002-03813/) | | Mar 26, 1999 | New building | SFD Unfinished basement attached garage 4 bedroom the original general permit | $140,000 | [PMT1999-02480](https://nearbypermits.com/boulder/permit/PMT1999-02480/) | ## 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 Nassau Pl with permits, nearest house number first: - [4565 Nassau Pl](https://nearbypermits.com/boulder/address/4565-nassau-pl/): newest permit Jul 28, 2025 - [4520 Nassau Pl](https://nearbypermits.com/boulder/address/4520-nassau-pl/): newest permit Jun 17, 2026 - [4435 Nassau Pl](https://nearbypermits.com/boulder/address/4435-nassau-pl/): newest permit Jun 11, 2025 - [4295 Nassau Pl](https://nearbypermits.com/boulder/address/4295-nassau-pl/): newest permit Jun 25, 2026 - [4141 Nassau Pl](https://nearbypermits.com/boulder/address/4141-nassau-pl/): newest permit Jan 2, 2026 - [4094 Nassau Pl](https://nearbypermits.com/boulder/address/4094-nassau-pl/): newest permit Dec 3, 2025 - [4075 Nassau Pl](https://nearbypermits.com/boulder/address/4075-nassau-pl/): newest permit Jan 7, 2026 - [4035 Nassau Pl](https://nearbypermits.com/boulder/address/4035-nassau-pl/): newest permit Oct 24, 2025 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-11 22:38 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 13 permits at this address: https://nearbypermits.com/boulder/address/4605-nassau-pl/