# Building permits at 434 Dewey Ave, Boulder, CO 25 permits on record here. The newest, Jan 13: Boiler replacement PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING APPLIANCES: All new plastic. 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 | |---|---|---|---|---| | Jan 13, 2026 | Mechanical (HVAC) | Boiler replacement 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 to the assigned ins | $9,411 | [MEC2026-00044](https://nearbypermits.com/boulder/permit/MEC2026-00044/) | | Apr 25, 2019 | Electrical | *Voided for inactivity due to no inspections performed within 180 days of issuance.*Add (6) recessed can lights under deck on existing switch. Add (1) switch and (2) exterior wall sconces above deck. | $1,500 | [ELE2018-00075](https://nearbypermits.com/boulder/permit/ELE2018-00075/) | | May 22, 2018 | Electrical | Construction of a carport attached to existing detached garage. On same plan set as deck addition on single family dwelling under PMT2017-04324. Change to plans 12/1/17 - Carport/deck attached to garage plans separated from plans for deck attached to dwelling. Updated plans to be resubmitted separat | $1,000 | [PMT2017-04323-ELE](https://nearbypermits.com/boulder/permit/PMT2017-04323-ELE/) | | May 22, 2018 | Addition | Construction of a carport attached to existing detached garage. On same plan set as deck addition on single family dwelling under PMT2017-04324. Change to plans 12/1/17 - Carport/deck attached to garage plans separated from plans for deck attached to dwelling. Updated plans to be resubmitted separat | $30,000 | [PMT2017-04323](https://nearbypermits.com/boulder/permit/PMT2017-04323/) | | Mar 21, 2018 | Electrical | Second story rear deck addition for a single family detached dwelling. Permit associated with carport addition to an existing detached garage on same plan set under PMT2017-04323. Change to plans 12/1/17 - Rear deck attached to dwelling separated from plans for carport/deck attached to the garage. U | $500 | [PMT2017-04324-ELE](https://nearbypermits.com/boulder/permit/PMT2017-04324-ELE/) | | Mar 21, 2018 | Addition | Second story rear deck addition for a single family detached dwelling. Permit associated with carport addition to an existing detached garage on same plan set under PMT2017-04323. Change to plans 12/1/17 - Rear deck attached to dwelling separated from plans for carport/deck attached to the garage. U | $30,000 | [PMT2017-04324](https://nearbypermits.com/boulder/permit/PMT2017-04324/) | | Jan 12, 2017 | Electrical | Installation of a 8.2 kW flush mount grid tied PV system on the roof of a single family detached dwelling in three arrays. | $25,813 | [PMT2017-00099-ELE](https://nearbypermits.com/boulder/permit/PMT2017-00099-ELE/) | | Sep 12, 2011 | Plumbing | Finish of second story above detached garage, to include one powder room. Peviously approved through PMT2007-05621. Not to be used as a sleeping room or as a dwelling unit. | $3,000 | [PMT2011-02971-PLB](https://nearbypermits.com/boulder/permit/PMT2011-02971-PLB/) | | Sep 12, 2011 | Mechanical (HVAC) | Finish of second story above detached garage, to include one powder room. Peviously approved through PMT2007-05621. Not to be used as a sleeping room or as a dwelling unit. | $6,000 | [PMT2011-02971-MEC](https://nearbypermits.com/boulder/permit/PMT2011-02971-MEC/) | | Sep 12, 2011 | Electrical | Finish of second story above detached garage, to include one powder room. Peviously approved through PMT2007-05621. Not to be used as a sleeping room or as a dwelling unit. | $2,000 | [PMT2011-02971-ELE](https://nearbypermits.com/boulder/permit/PMT2011-02971-ELE/) | | Sep 12, 2011 | Alteration or repair | Finish of second story above detached garage, to include one powder room. Peviously approved through PMT2007-05621. Not to be used as a sleeping room or as a dwelling unit. | $35,534 | [PMT2011-02971](https://nearbypermits.com/boulder/permit/PMT2011-02971/) | | Mar 23, 2011 | Plumbing | After the fact basement finish permit for 1600 square foot basement. To include bedroom, office, full bathroom and bar area. | $5,000 | [PMT2011-01135-PLB](https://nearbypermits.com/boulder/permit/PMT2011-01135-PLB/) | | Mar 23, 2011 | Mechanical (HVAC) | After the fact basement finish permit for 1600 square foot basement. To include bedroom, office, full bathroom and bar area. | $5,000 | [PMT2011-01135-MEC](https://nearbypermits.com/boulder/permit/PMT2011-01135-MEC/) | | Mar 23, 2011 | Electrical | After the fact basement finish permit for 1600 square foot basement. To include bedroom, office, full bathroom and bar area. | $5,000 | [PMT2011-01135-ELE](https://nearbypermits.com/boulder/permit/PMT2011-01135-ELE/) | | Mar 23, 2011 | Alteration or repair | After the fact basement finish permit for 1600 square foot basement. To include bedroom, office, full bathroom and bar area. | $129,216 | [PMT2011-01135](https://nearbypermits.com/boulder/permit/PMT2011-01135/) | | Jun 10, 2009 | Fence, wall or deck | Construction of cedar privacy fence with maximum height of seven feet along alley and western property line. Ten foot gate required for access to storm sewer. | $3,200 | [PMT2009-02108-FEN](https://nearbypermits.com/boulder/permit/PMT2009-02108-FEN/) | | May 8, 2008 | Plumbing | New detached garage with 2nd floor with 1/2 bath 418 SF See PMT2007-05621 for new SFD. | $2,508 | [PMT2007-05623-PLB](https://nearbypermits.com/boulder/permit/PMT2007-05623-PLB/) | | May 8, 2008 | Electrical | New detached garage with 2nd floor with 1/2 bath 418 SF See PMT2007-05621 for new SFD. | $1,885 | [PMT2007-05623-ELE](https://nearbypermits.com/boulder/permit/PMT2007-05623-ELE/) | | May 8, 2008 | New building | New detached garage with 2nd floor with 1/2 bath 418 SF See PMT2007-05621 for new SFD. | $63,113 | [PMT2007-05623](https://nearbypermits.com/boulder/permit/PMT2007-05623/) | | May 8, 2008 | Plumbing | New two story SFD, 3 bedrooms, 2-3/4 baths. Finished basement. Detached garage by separate permit. See pmt 2007-05623. | $19,000 | [PMT2007-05621-PLB](https://nearbypermits.com/boulder/permit/PMT2007-05621-PLB/) | | May 8, 2008 | Mechanical (HVAC) | New two story SFD, 3 bedrooms, 2-3/4 baths. Finished basement. Detached garage by separate permit. See pmt 2007-05623. | $16,015 | [PMT2007-05621-MEC](https://nearbypermits.com/boulder/permit/PMT2007-05621-MEC/) | | May 8, 2008 | Electrical | New two story SFD, 3 bedrooms, 2-3/4 baths. Finished basement. Detached garage by separate permit. See pmt 2007-05623. | $14,413 | [PMT2007-05621-ELE](https://nearbypermits.com/boulder/permit/PMT2007-05621-ELE/) | | May 8, 2008 | New building | New two story SFD, 3 bedrooms, 2-3/4 baths. Finished basement. Detached garage by separate permit. See pmt 2007-05623. | $563,866 | [PMT2007-05621](https://nearbypermits.com/boulder/permit/PMT2007-05621/) | | May 22, 2007 | Demolition | Full structure demo of SFD and garage. See HIS2007-00056 and HIS2007-00057 for landmarks approval. | Not listed | [PMT2007-02011-DEM](https://nearbypermits.com/boulder/permit/PMT2007-02011-DEM/) | | Dec 29, 2004 | Electrical | electrical permit for a service change only - 100 amps | $750 | [PMT2004-04876-ELE](https://nearbypermits.com/boulder/permit/PMT2004-04876-ELE/) | ## More on this street Other addresses on Dewey Ave with permits, nearest house number first: - [430 Dewey Ave](https://nearbypermits.com/boulder/address/430-dewey-ave/): newest permit Apr 24, 2025 - [345 Dewey Ave](https://nearbypermits.com/boulder/address/345-dewey-ave/): newest permit Feb 3, 2025 - [537 Dewey Ave](https://nearbypermits.com/boulder/address/537-dewey-ave/): newest permit Jun 12, 2026 - [538 Dewey Ave](https://nearbypermits.com/boulder/address/538-dewey-ave/): newest permit Nov 12, 2024 - [636 Dewey Ave](https://nearbypermits.com/boulder/address/636-dewey-ave/): newest permit May 27, 2026 - [653 Dewey Ave](https://nearbypermits.com/boulder/address/653-dewey-ave/): newest permit Jun 10, 2026 - [825 Dewey Ave](https://nearbypermits.com/boulder/address/825-dewey-ave/): newest permit Nov 17, 2025 - [827 Dewey Ave](https://nearbypermits.com/boulder/address/827-dewey-ave/): newest permit Nov 17, 2025 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 01:19 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 25 permits at this address: https://nearbypermits.com/boulder/address/434-dewey-ave/