Mesa building & ADU permits
Recent permit activity, updated continuously.
Mesa anchors the East Valley of metropolitan Phoenix and falls under Arizona's 2024 ADU and middle-housing laws for larger cities. Mesa's Socrata feed omits ZIP codes, so Igni reverse-geocodes each permit from its latitude and longitude before normalizing and classifying the record.
Igni is tracking 971 residential and building permits in Mesa, AZ — including 17 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 85212. The most recent filing Igni tracked was Jul 31, 2026. All records come from data.mesaaz.gov (Socrata), an official government open-data feed, and are refreshed continuously.
971
Permits tracked
17
ADU permits
13
Distinct ZIP codes
Jul 31, 2026
Newest permit
Recent permits
A sample of the freshest permits in this jurisdiction — ZIP and city only (no street addresses).
| ZIP | Permit type | ADU type | Valuation | Applied |
|---|---|---|---|---|
| 85212 | Commercial | — | — | Jul 31, 2026 |
| 85212 | Residential | — | — | Jul 31, 2026 |
| 85212 | Commercial | — | — | Jul 31, 2026 |
| 85215 | Commercial | — | — | Jul 29, 2026 |
| 85206 | Other | — | — | Jul 29, 2026 |
| 85204 | Residential | — | — | Jul 30, 2026 |
| 85204 | Residential | — | — | Jul 30, 2026 |
| 85212 | Commercial | — | — | Jul 30, 2026 |
| 85210 | Commercial | — | — | Jul 30, 2026 |
| 85202 | Other | — | — | Jul 30, 2026 |
| 85205 | Residential | — | — | Jul 30, 2026 |
| 85213 | Commercial | — | — | Jul 30, 2026 |
| 85212 | Commercial | — | — | Jul 30, 2026 |
| 85212 | Residential | — | — | Jul 30, 2026 |
| 85212 | Residential | — | — | Jul 30, 2026 |
| 85202 | Commercial | — | — | Jul 30, 2026 |
| 85201 | Residential | — | — | Jul 30, 2026 |
| 85205 | Residential | — | — | Jul 30, 2026 |
| 85212 | Commercial | — | — | Jul 30, 2026 |
| 85212 | Residential | — | $0 | Jul 30, 2026 |
Top ZIP codes by recent activity
ADU types in the recent set
Housing law — Arizona
Arizona's HB 2720 (2024) requires municipalities with more than 75,000 residents to permit at least one accessory dwelling unit on lots where single-family homes are allowed; cities that did not adopt conforming rules by January 1, 2025 must allow ADUs on all residential lots.
Arizona's HB 2721 (2024) requires cities over 75,000 to allow 'middle housing' — duplexes through fourplexes and townhomes — by right near central business districts, with compliance by January 1, 2026. A separate 'Starter Homes Act' did not become law (vetoed in 2024, stalled in 2025).
Mesa ADU rules
Mesa permits internal, attached, and detached accessory dwelling units by right in all of its single-residence zoning districts, under Mesa Zoning Ordinance Section 11-31-3 as updated by Ordinance No. 5883 (2024) and Ordinance No. 5950 (July 2025) to comply with Arizona's House Bill 2720. There is no minimum lot size to add an ADU, and each unit must have its own independent entrance and separate water, sewer, and electric service.
A detached ADU's interior habitable area is capped at 75 percent of the primary residence's habitable area or 1,000 square feet, whichever is less. Consistent with HB 2720, Mesa does not require additional off-street parking for an ADU and may not impose an owner-occupancy mandate, and setbacks are limited by state law. A notable 2025 amendment removed the requirement to replace covered parking when a garage is converted into an ADU — a rule that had previously stalled many garage-conversion projects on tighter lots, since converting existing space such as a basement, attic, or attached garage is often the lowest-cost path to an accessory unit.
Because a code-compliant ADU is a by-right use, a conforming Mesa casita is reviewed administratively through the building permit rather than a discretionary hearing.
This is an informational summary — verify current rules with the city's planning/permitting department; not legal advice.
See also: Arizona ADU law and what is an ADU?
Data source
Sourced from data.mesaaz.gov (Socrata). Public records (Arizona Public Records Law).
Nearby cities — Arizona
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Mesa permit records into leads.
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Informational only, not legal advice. Headline counts reflect all permits Igni has tracked for this jurisdiction; the table shows recent activity. Housing law changes — verify current statutes before relying on this.