# Building permits at 620 S 42nd St, Boulder, CO

Four permits on record here. The newest, Aug 6: 3 Ton electric heat pump installation replacing an existing gas furnace. 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 |
|---|---|---|---|---|
| Aug 6, 2026 | Mechanical (HVAC) | 3 Ton electric heat pump installation replacing an existing gas furnace. The gas line will be capped at the removed furnace location. Will disconnect the electrical from the old HVAC and connect it to the new HVAC. Including a 5kw heat strip. PLEASE NOTE: APPLICABLE ONLY TO SYSTEMS WITH FUEL BURNING | $18,705 | [MEC2026-01312](https://nearbypermits.com/boulder/permit/MEC2026-01312/) |
| Jun 8, 2026 | Roofing | All Structures must be permitted separately Total tear-off & reroof of SFD, 19 squares of dimensional shingles on a pitch represented as 2/12. 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 | $8,500 | [RFG2026-00555](https://nearbypermits.com/boulder/permit/RFG2026-00555/) |
| Oct 15, 2015 | Electrical | Electrical service change 125 amp. and associated grounding. | $6,850 | [PMT2015-04573-ELE](https://nearbypermits.com/boulder/permit/PMT2015-04573-ELE/) |
| Nov 1, 2006 | Mechanical (HVAC) | Replacement Forced Air Furnace | $2,656 | [PMT2006-20291-MEC](https://nearbypermits.com/boulder/permit/PMT2006-20291-MEC/) |

## 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 S 42nd St with permits, nearest house number first:

- [615 S 42nd St](https://nearbypermits.com/boulder/address/615-s-42nd-st/): newest permit Jan 22, 2026
- [640 S 42nd St](https://nearbypermits.com/boulder/address/640-s-42nd-st/): newest permit Aug 5, 2026
- [645 S 42nd St](https://nearbypermits.com/boulder/address/645-s-42nd-st/): newest permit Jun 12, 2025
- [655 S 42nd St](https://nearbypermits.com/boulder/address/655-s-42nd-st/): newest permit Mar 20, 2025
- [660 S 42nd St](https://nearbypermits.com/boulder/address/660-s-42nd-st/): newest permit Apr 24, 2026
- [550 S 42nd St](https://nearbypermits.com/boulder/address/550-s-42nd-st/): newest permit Jun 22, 2026
- [545 S 42nd St](https://nearbypermits.com/boulder/address/545-s-42nd-st/): newest permit Sep 1, 2026
- [540 S 42nd St](https://nearbypermits.com/boulder/address/540-s-42nd-st/): newest permit Sep 4, 2026
- [530 S 42nd St](https://nearbypermits.com/boulder/address/530-s-42nd-st/): newest permit Mar 17, 2026
- [520 S 42nd St](https://nearbypermits.com/boulder/address/520-s-42nd-st/): newest permit May 14, 2026

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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 15:18 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

All 4 permits at this address: https://nearbypermits.com/boulder/address/620-s-42nd-st/