# Mechanical (HVAC) permit MEC2021-01967 at 220 Green Rock Dr, Boulder

Boulder Planning and Development Services permit MEC2021-01967: issued Oct 13, 2021 for mechanical (hvac) work at 220 Green Rock Dr. Convert existing walk-in closet into a 52.5 sq ft full bath. Add in floor heating mat under new tile. Relocate closet to underneath existing staircase. Replace existing French door with new energy efficient sliding glass door.

- Permit number: MEC2021-01967
- Issued: Oct 13, 2021
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical Sub-Permit)
- Status: Finished (city: Closed)
- Reported cost: $500
- ZIP code: 80302
- All permits at this address: https://nearbypermits.com/boulder/address/220-green-rock-dr/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-17 15:40 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 220 Green Rock Dr: https://nearbypermits.com/boulder/address/220-green-rock-dr/