# Building permits at 3257 E Harmony Ave 101, Mesa, AZ

3257 E Harmony Ave 101, Mesa has 1 building permit on record. The most recent, opened Feb 12, 2026, is for addition: New 420 SF addition to an existing casita reference permit #213925 on the right side of the main house with some Mechanical, Plumbing and Electrical improvements. Includes a new 40…

| Date | Type | Work | Cost | Permit |
|---|---|---|---|---|
| Feb 12, 2026 | Addition | New 420 SF addition to an existing casita reference permit #213925 on the right side of the main house with some Mechanical, Plumbing and Electrical improvements. Includes a new 400A service panel upgrade. | – | [PMT26-02785](https://nearbypermits.com/mesa/permit/PMT26-02785/) |

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Source: Mesa Development Services permit data (https://citydata.mesaaz.gov/d/dzpk-hxfb). Checked 2026-10-02 09:03 UTC. Nearby Permits, https://nearbypermits.com. JSON API and MCP server: https://nearbypermits.com/developers/