# Building permits at 145 S 42nd St, Boulder, CO

One permit here in the last two years. The newest, Oct 30, 2024: Trane 80% Efficient 080k BTU 2-Stage ECM Furnace Bosch 18-SEER2 Heat Pump 1-3 Ton Variable Capacity System. 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 |
|---|---|---|---|---|
| Oct 30, 2024 | Mechanical (HVAC) | Trane 80% Efficient 080k BTU 2-Stage ECM Furnace Bosch 18-SEER2 Heat Pump 1-3 Ton Variable Capacity System | $16,552 | [MEC2024-01249](https://nearbypermits.com/boulder/permit/MEC2024-01249/) |

## 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:

- [135 S 42nd St](https://nearbypermits.com/boulder/address/135-s-42nd-st/): newest permit Apr 22, 2026
- [130 S 42nd St](https://nearbypermits.com/boulder/address/130-s-42nd-st/): newest permit Jun 2, 2026
- [345 S 42nd St](https://nearbypermits.com/boulder/address/345-s-42nd-st/): newest permit May 8, 2026
- [360 S 42nd St](https://nearbypermits.com/boulder/address/360-s-42nd-st/): newest permit Jun 2, 2026
- [365 S 42nd St](https://nearbypermits.com/boulder/address/365-s-42nd-st/): newest permit Dec 16, 2025
- [375 S 42nd St](https://nearbypermits.com/boulder/address/375-s-42nd-st/): newest permit May 15, 2026
- [420 S 42nd St](https://nearbypermits.com/boulder/address/420-s-42nd-st/): newest permit Mar 4, 2025
- [425 S 42nd St](https://nearbypermits.com/boulder/address/425-s-42nd-st/): newest permit Oct 24, 2025
- [430 S 42nd St](https://nearbypermits.com/boulder/address/430-s-42nd-st/): newest permit May 22, 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 2026-10-11 01:53 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

The one permit at this address: https://nearbypermits.com/boulder/address/145-s-42nd-st/