# Building permits at 1400 Mariposa Ave, Boulder, CO

One permit here in the last two years. The newest, Dec 3, 2025: Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other than asphalt. 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 |
|---|---|---|---|---|
| Dec 3, 2025 | Roofing | Mid-roof inspection is required if 1) pitch is less than 4/12 or 2) for any roof type other than asphalt shingles (regardless of pitch). For roof/attic assemblies requiring 1/150 ventilation, include a calculation detailing the quantity of intake and exhaust vents demonstrating 1/150 venting ratio c | $29,135 | [RFG2025-00952](https://nearbypermits.com/boulder/permit/RFG2025-00952/) |

## 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 Mariposa Ave with permits, nearest house number first:

- [1401 Mariposa Ave](https://nearbypermits.com/boulder/address/1401-mariposa-ave/): newest permit Aug 29, 2025
- [1330 Mariposa Ave](https://nearbypermits.com/boulder/address/1330-mariposa-ave/): newest permit May 7, 2026
- [1512 Mariposa Ave](https://nearbypermits.com/boulder/address/1512-mariposa-ave/): newest permit Apr 22, 2026
- [1225 Mariposa Ave](https://nearbypermits.com/boulder/address/1225-mariposa-ave/): newest permit Aug 7, 2026
- [1224 Mariposa Ave](https://nearbypermits.com/boulder/address/1224-mariposa-ave/): newest permit Mar 12, 2026
- [1660 Mariposa Ave](https://nearbypermits.com/boulder/address/1660-mariposa-ave/): newest permit Aug 13, 2026
- [1709 Mariposa Ave](https://nearbypermits.com/boulder/address/1709-mariposa-ave/): newest permit Sep 4, 2026
- [1739 Mariposa Ave](https://nearbypermits.com/boulder/address/1739-mariposa-ave/): newest permit Jul 27, 2026
- [1809 Mariposa Ave](https://nearbypermits.com/boulder/address/1809-mariposa-ave/): newest permit Feb 24, 2026
- [1816 Mariposa Ave](https://nearbypermits.com/boulder/address/1816-mariposa-ave/): newest permit Sep 24, 2026

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-16 01:20 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/1400-mariposa-ave/