# Mechanical (HVAC) permit MEC2020-02053 at 3300 Walnut St, Boulder

Boulder Planning and Development Services permit MEC2020-02053: issued Mar 10, 2021 for mechanical (hvac) work at 3300 Walnut St. *Voided for inactivity - requirements not received within 180 days* Installation (1) new rooftop make-up air unit, one new exhaust fan and controls to modulate for Rudi's Bakery. Scope includes natural gas pipe installation and electrical for new MAU and EF. Electrical to be by same contractor under related sub-permit. *Resubmittal received 2/1.*Resubmittal 2/23: Resubmittal of plans in regards to plan reviewer Comments. Resubmittal of structural letter from engineer approving changes made to mech plans.

- Permit number: MEC2020-02053
- Issued: Mar 10, 2021
- Type of work: Mechanical (HVAC) (city: Mechanical Permit, Mechanical HVAC/Solar)
- Status: Cancelled (city: Void)
- Reported cost: $190,371
- ZIP code: 80301
- All permits at this address: https://nearbypermits.com/boulder/address/3300-walnut-st/

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Source: Boulder Planning and Development Services permit data (https://www.arcgis.com/home/item.html?id=e3ff6248e4a547bcba31025d2c5c9fee). Checked 2026-10-06 10:21 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/

Every permit at 3300 Walnut St: https://nearbypermits.com/boulder/address/3300-walnut-st/