Tempe building & ADU permits
Recent permit activity, updated continuously.
Tempe sits in the Phoenix metro and is home to Arizona State University's main campus. Under Arizona's 2024 reforms (HB 2720 and HB 2721), larger cities must allow ADUs and middle housing — and Tempe publishes its permits as open ArcGIS data under CC BY 4.0, which Igni surfaces with the required © City of Tempe attribution.
Igni is tracking 1,311 residential and building permits in Tempe, AZ — including 19 classified accessory-dwelling-unit (ADU) filings. The most active ZIP is 85282. The most recent filing Igni tracked was Jul 31, 2026. All records come from City of Tempe ArcGIS open data (Esri), an official government open-data feed, and are refreshed continuously.
1311
Permits tracked
19
ADU permits
5
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 |
|---|---|---|---|---|
| 85284 | Residential | — | $110,000 | Mar 31, 2026 |
| 85284 | Other | — | $500 | Jun 22, 2026 |
| 85282 | Residential | — | $3,000 | Jul 6, 2026 |
| 85288 | Other | — | $8,000 | Jul 9, 2026 |
| 85283 | Other | — | $12,500 | Jul 28, 2026 |
| 85282 | Residential | — | $3,750 | Jul 30, 2026 |
| 85284 | Residential | — | $500 | Jul 31, 2026 |
| 85288 | Commercial | — | $660,000 | Apr 16, 2026 |
| 85282 | Residential | — | $40,000 | May 2, 2026 |
| 85282 | Residential | — | $29,949 | May 27, 2026 |
| 85284 | Commercial | — | $78,026 | Jun 1, 2026 |
| 85284 | Residential | — | $5,900 | Jun 15, 2026 |
| 85284 | Residential | — | $26,499 | Jul 6, 2026 |
| 85282 | Residential | — | $1,000 | Jul 15, 2026 |
| 85281 | Other | — | $14,000 | Jul 21, 2026 |
| 85284 | Other | — | $19,500 | Jul 24, 2026 |
| 85283 | Residential | — | $1,000 | Jul 24, 2026 |
| 85283 | Residential | — | $2,000 | Jul 27, 2026 |
| 85283 | Residential | — | $36,489 | Jul 28, 2026 |
| 85282 | Residential | — | $2,800 | Jul 29, 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).
Tempe ADU rules
Tempe updated its accessory dwelling unit ('casita') rules to comply with Arizona's House Bill 2720, the 2024 state law (effective January 1, 2025) requiring cities of more than 75,000 residents to allow ADUs on single-family lots. Under the city's Zoning and Development Code, a single-family lot may add at least one attached and one detached ADU, and the city cannot impose standards on an ADU that are more restrictive than those for a single-family home in the same district.
State law shapes the key numbers: a municipality may not require additional off-street parking for an ADU or impose an owner-occupancy mandate, and the largest setback a city can require is five feet. Tempe limits an ADU to no more than two bedrooms and ties its height to the underlying zone (typically around 30 feet). ADU size scales with the main dwelling — on larger lots of an acre or more, for example, an ADU is capped at 75 percent of the home's interior habitable area or 2,000 square feet, whichever is less — with smaller caps on smaller lots.
Because HB 2720 makes a code-compliant ADU an administrative, by-right approval, a conforming casita in Tempe is reviewed through the building permit rather than a discretionary hearing. The city publishes an ADU resource page outlining the standards and process.
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 City of Tempe ArcGIS open data (Esri). CC BY 4.0.
Attribution: © City of Tempe (CC BY 4.0)
Nearby cities — Arizona
Learn more about ADUs & building permits
Background reading on accessory dwelling units, building permits, and how Igni turns Tempe 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.