# Building permits at 621 Maxwell Ave, Boulder, CO 14 permits on record here. The newest, May 12, 2025: Total tear-off & reroof of SFD. 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 | |---|---|---|---|---| | May 12, 2025 | Roofing | Total tear-off & reroof of SFD, 31.72 squares of dimensional shingles on a pitch represented as 12/12. All roof materials shall be installed per manufacturer?s specs. *See HIS2025-00125* Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other than asphalt shingles | $17,000 | [RFG2025-00267](https://nearbypermits.com/boulder/permit/RFG2025-00267/) | | Aug 8, 2018 | Plumbing | Remodel of 625 SF, including a new kitchen, living room and laundry room. Scope also includes changes to door and windows, and a new range hood vent opening, at the non-historic portion of building, as detailed on LAC drawings dated 03.02.2018. Associated MEP's covered under the scope of this permit | $15,000 | [PLB2018-00215](https://nearbypermits.com/boulder/permit/PLB2018-00215/) | | Aug 8, 2018 | Mechanical (HVAC) | Remodel of 625 SF, including a new kitchen, living room and laundry room. Scope also includes changes to door and windows, and a new range hood vent opening, at the non-historic portion of building, as detailed on LAC drawings dated 03.02.2018. Associated MEP's covered under the scope of this permit | $16,000 | [MEC2018-00505](https://nearbypermits.com/boulder/permit/MEC2018-00505/) | | Aug 8, 2018 | Electrical | Remodel of 625 SF, including a new kitchen, living room and laundry room. Scope also includes changes to door and windows, and a new range hood vent opening, at the non-historic portion of building, as detailed on LAC drawings dated 03.02.2018. Associated MEP's covered under the scope of this permit | $16,000 | [ELE2018-00422](https://nearbypermits.com/boulder/permit/ELE2018-00422/) | | Aug 8, 2018 | Alteration or repair | Remodel of 625 SF, including a new kitchen, living room and laundry room. Scope also includes changes to door and windows, and a new range hood vent opening, at the non-historic portion of building, as detailed on LAC drawings dated 03.02.2018. Associated MEP's covered under the scope of this permit | $280,000 | [BLD-SFD2018-00137](https://nearbypermits.com/boulder/permit/BLD-SFD2018-00137/) | | Jan 20, 2011 | Mechanical (HVAC) | Construction of a 336 sf deck (less than 30" to grade) and repair/rehabilitation 73 sf of staircase, balusters, treads, and handrail. Approved per HIS2010-00244. Project includes installation of gas line for outdoor grill. | $900 | [PMT2011-00259-MEC](https://nearbypermits.com/boulder/permit/PMT2011-00259-MEC/) | | Jan 20, 2011 | New building | Construction of a 336 sf deck (less than 30" to grade) and repair/rehabilitation 73 sf of staircase, balusters, treads, and handrail. Approved per HIS2010-00244. Project includes installation of gas line for outdoor grill. | $11,328 | [PMT2011-00259](https://nearbypermits.com/boulder/permit/PMT2011-00259/) | | Apr 27, 2005 | Fence, wall or deck | Installation of cedar privacy fence in rear yard of single-family residence. Fence to be 6-feet in height, 184 feet in length. | $7,000 | [PMT2005-01518-FEN](https://nearbypermits.com/boulder/permit/PMT2005-01518-FEN/) | | Jul 12, 2000 | Plumbing | Two story addition w/ basement to rear of structure.Covered porch (6'x17') on front of structure. Addition includes - rec. room and laundry in basement, family room and kitchen relocation on first floor, two bed and bath on upper floor. (existing use is a duplex. conversion to single family dwelling | $8,000 | [PMT2000-00690-PLB](https://nearbypermits.com/boulder/permit/PMT2000-00690-PLB/) | | Jul 12, 2000 | Mechanical (HVAC) | Two story addition w/ basement to rear of structure.Covered porch (6'x17') on front of structure. Addition includes - rec. room and laundry in basement, family room and kitchen relocation on first floor, two bed and bath on upper floor. (existing use is a duplex. conversion to single family dwelling | $3,000 | [PMT2000-00690-MEC](https://nearbypermits.com/boulder/permit/PMT2000-00690-MEC/) | | Jul 12, 2000 | Electrical | Two story addition w/ basement to rear of structure.Covered porch (6'x17') on front of structure. Addition includes - rec. room and laundry in basement, family room and kitchen relocation on first floor, two bed and bath on upper floor. (existing use is a duplex. conversion to single family dwelling | $8,000 | [PMT2000-00690-ELE](https://nearbypermits.com/boulder/permit/PMT2000-00690-ELE/) | | Jul 12, 2000 | Addition | Two story addition w/ basement to rear of structure.Covered porch (6'x17') on front of structure. Addition includes - rec. room and laundry in basement, family room and kitchen relocation on first floor, two bed and bath on upper floor. (existing use is a duplex. conversion to single family dwelling | $150,000 | [PMT2000-00690](https://nearbypermits.com/boulder/permit/PMT2000-00690/) | | Jun 28, 2000 | Electrical | temp const power | Not listed | [PMT2000-02690-ELE](https://nearbypermits.com/boulder/permit/PMT2000-02690-ELE/) | | Feb 16, 2000 | Demolition | Demo detached garage | Not listed | [PMT2000-00692-DEM](https://nearbypermits.com/boulder/permit/PMT2000-00692-DEM/) | ## More on this street Other addresses on Maxwell Ave with permits, nearest house number first: - [624 Maxwell Ave](https://nearbypermits.com/boulder/address/624-maxwell-ave/): newest permit May 23, 2025 - [628 Maxwell Ave](https://nearbypermits.com/boulder/address/628-maxwell-ave/): newest permit Dec 5, 2025 - [611 Maxwell Ave](https://nearbypermits.com/boulder/address/611-maxwell-ave/): newest permit Feb 18, 2026 - [661 Maxwell Ave](https://nearbypermits.com/boulder/address/661-maxwell-ave/): newest permit Jun 26, 2026 - [665 Maxwell Ave](https://nearbypermits.com/boulder/address/665-maxwell-ave/): newest permit Oct 27, 2025 - [541 Maxwell Ave](https://nearbypermits.com/boulder/address/541-maxwell-ave/): newest permit Apr 11, 2025 - [536 Maxwell Ave](https://nearbypermits.com/boulder/address/536-maxwell-ave/): newest permit Apr 17, 2025 - [707 Maxwell Ave](https://nearbypermits.com/boulder/address/707-maxwell-ave/): newest permit Nov 19, 2025 - [527 Maxwell Ave](https://nearbypermits.com/boulder/address/527-maxwell-ave/): newest permit Apr 11, 2025 - [716 Maxwell Ave](https://nearbypermits.com/boulder/address/716-maxwell-ave/): newest permit Oct 14, 2025 --- Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-07 01:07 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/ All 14 permits at this address: https://nearbypermits.com/boulder/address/621-maxwell-ave/