EVERY CLAIM LINKS TO ITS SOURCE.
When a page states a rule, it cites the ordinance section or statute and links to the original government text — not a summary of it.
/ VERIFIED RESOURCE LIBRARY
ARIZONA RESIDENTIAL BUILDING RULES
A reference library on the rules that govern residential building in Greater Phoenix — the West Valley, Scottsdale, Phoenix, and the East Valley (Tempe, Mesa, Gilbert, Chandler), plus area guides for Ahwatukee Foothills and Laveen: state laws, county and city ordinances, and the questions homeowners actually ask.
PRIMARY SOURCESLAST-VERIFIED DATESCORRECTIONS ON THE RECORD
/ HOW IT WORKS
ANSWERS YOU CAN CHECK
EVERY PAGE CARRIES A LAST-VERIFIED DATE.
Rules change. The date tells you when we last re-read the source. If a page is out of date, the date says so.
CORRECTIONS ARE ON THE RECORD.
When we get something wrong, the correction is published on the page, not quietly edited away.
ANSWERS COME BEFORE ANY SALES PITCH.
The answer on each page is complete on its own — including when the honest answer is that you don't need a contractor for the job.
/ WHAT'S IN THE LIBRARY
ONE SYSTEM, THREE PAGE TYPES
LAWS
One page per statute or ordinance: what the rule says, when it took effect, where it applies, what legal force it has, what's still unsettled, and a link to the original text.
CMS · STRUCTURED LEGAL RECORDSJURISDICTIONS
One page per permitting authority. Who actually issues your permit depends on where your parcel sits, and the rules differ city to city. Each page covers one authority's residential rule set.
CMS · PERMITTING AUTHORITIES + AREA GUIDESANSWERS
Published as posts in the existing blog and tagged so this hub can index them. Direct answers to specific questions where the commonly repeated answer is wrong or incomplete, with the record laid out so you can check it.
BLOG CMS · VERIFIED ANSWERS ONLY/ VERIFIED NOW
THE FIRST ANSWER
IS THE ARIZONA STARTER HOMES ACT LAW?
No. As of September 1, 2026, the Arizona Starter Homes Act has never become law.
READ THE VERIFIED ANSWER →/ VERIFICATION QUEUE
THE GREATER PHOENIX INDEX
Pages marked “coming” are in verification now and will be added as each one clears review.
LAWS
- HB 2720 — Arizona's 2024 accessory dwelling unit lawVIEW
- HB 2721 — Arizona's 2024 middle housing lawVIEW
- HB 2928 — the 2025 ADU follow-up lawVIEW
- Arizona's short-term rental framework — A.R.S. §§ 9-500.39 and 11-269.17VIEW
- Maricopa County Zoning Ordinance — current county ADU + STR rulesCOMING
- Pool barriers — A.R.S. §36-1681 COMING
JURISDICTIONS
- Goodyear + Buckeye FIRST
- Surprise · Peoria · Glendale · Avondale COMING
- Scottsdale · Phoenix COMING
- Tempe · Mesa · Gilbert · Chandler COMING
- Ahwatukee + Laveen area guides COMING
ANSWERS
- Is the Arizona Starter Homes Act law? IN REVIEW
- Scottsdale's casita rules timeline COMING
- Phoenix middle housing COMING
- HOA rules vs. HB 2720 COMING
- ADUs and property tax COMING
/ SCOPE
RESIDENTIAL BUILDING RULES IN GREATER PHOENIX.
This library covers the West Valley, Scottsdale, Phoenix, Tempe, Mesa, Gilbert, Chandler, and the Ahwatukee Foothills and Laveen area guides. It does not cover commercial construction, and it does not cover other Arizona metros.
These pages report what the written rules say, with citations. They are not legal advice, and they are not a substitute for confirmation from your permitting jurisdiction — check with your city or county before you design or build.