# Building permits at 685 Northstar Ct, Boulder, CO

Nine permits on record here. The newest, Sep 22, 2025: All Structures must be permitted separately 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 |
|---|---|---|---|---|
| Sep 22, 2025 | Roofing | All Structures must be permitted separately Total tear-off & reroof of SFD, 18 squares of dimensional shingles on a pitch represented as 4/12. All roof materials shall be installed per manufacturer?s specs. Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other t | $11,814 | [RFG2025-00748](https://nearbypermits.com/boulder/permit/RFG2025-00748/) |
| Dec 19, 2017 | Mechanical (HVAC) | Installation of a replacement 80k BTU, 82% efficient forced air furnace. Installation of a replacement 16 SEER, 3.0 ton A/C system. Installation per manufacturer's specifications. | $6,697 | [PMT2017-05405-MEC](https://nearbypermits.com/boulder/permit/PMT2017-05405-MEC/) |
| Nov 8, 2016 | Mechanical (HVAC) | Replacement Water Heater | $1,200 | [PMT2016-20363-MEC](https://nearbypermits.com/boulder/permit/PMT2016-20363-MEC/) |
| Nov 23, 2015 | Electrical | Installation of a flush mount 4.40 kW photovoltaic system. Array to be parallel to roof plane, grid tied and remain below ridge, inside/below hips and rake edges and above eave. See engineer's letter and /or drawing(s) for specific information. No structural modifications approved under this permit. | $9,196 | [PMT2015-05254-ELE](https://nearbypermits.com/boulder/permit/PMT2015-05254-ELE/) |
| Jun 25, 2001 | Plumbing | 128 sq. ft. entry addition and 80 sq. ft. covered porch on east side of structure. Main level remodel - convert from two bedrooms and one bath to one bedroom and one and one-half bath. Relocate kitchen. (in P.U.D.) | $4,000 | [PMT2001-02131-PLB](https://nearbypermits.com/boulder/permit/PMT2001-02131-PLB/) |
| Jun 25, 2001 | Mechanical (HVAC) | 128 sq. ft. entry addition and 80 sq. ft. covered porch on east side of structure. Main level remodel - convert from two bedrooms and one bath to one bedroom and one and one-half bath. Relocate kitchen. (in P.U.D.) | $4,000 | [PMT2001-02131-MEC](https://nearbypermits.com/boulder/permit/PMT2001-02131-MEC/) |
| Jun 25, 2001 | Electrical | 128 sq. ft. entry addition and 80 sq. ft. covered porch on east side of structure. Main level remodel - convert from two bedrooms and one bath to one bedroom and one and one-half bath. Relocate kitchen. (in P.U.D.) | $5,000 | [PMT2001-02131-ELE](https://nearbypermits.com/boulder/permit/PMT2001-02131-ELE/) |
| Jun 25, 2001 | Addition | 128 sq. ft. entry addition and 80 sq. ft. covered porch on east side of structure. Main level remodel - convert from two bedrooms and one bath to one bedroom and one and one-half bath. Relocate kitchen. (in P.U.D.) | $110,000 | [PMT2001-02131](https://nearbypermits.com/boulder/permit/PMT2001-02131/) |
| Jun 1, 2001 | Demolition | Interior non-structural demolition. | Not listed | [PMT2001-02261-DEM](https://nearbypermits.com/boulder/permit/PMT2001-02261-DEM/) |

## More on this street

Other addresses on Northstar Ct with permits, nearest house number first:

- [695 Northstar Ct](https://nearbypermits.com/boulder/address/695-northstar-ct/): newest permit Aug 29, 2025
- [645 Northstar Ct](https://nearbypermits.com/boulder/address/645-northstar-ct/): newest permit Feb 19, 2026
- [635 Northstar Ct](https://nearbypermits.com/boulder/address/635-northstar-ct/): newest permit Jul 21, 2026
- [760 Northstar Ct](https://nearbypermits.com/boulder/address/760-northstar-ct/): newest permit May 18, 2026
- [785 Northstar Ct](https://nearbypermits.com/boulder/address/785-northstar-ct/): newest permit Dec 18, 2025
- [575 Northstar Ct](https://nearbypermits.com/boulder/address/575-northstar-ct/): newest permit Jan 22, 2025
- [560 Northstar Ct](https://nearbypermits.com/boulder/address/560-northstar-ct/): newest permit Aug 21, 2026
- [535 Northstar Ct](https://nearbypermits.com/boulder/address/535-northstar-ct/): newest permit Apr 1, 2026
- [525 Northstar Ct](https://nearbypermits.com/boulder/address/525-northstar-ct/): newest permit May 19, 2026
- [515 Northstar Ct](https://nearbypermits.com/boulder/address/515-northstar-ct/): newest permit Nov 5, 2024

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-08 08:52 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 9 permits at this address: https://nearbypermits.com/boulder/address/685-northstar-ct/