ADU Rules in Glendale, Arizona
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ADU Rules in Glendale, Arizona
Arizona's casita statute is HB 2720 (2024), codified at A.R.S. §9-461.18, applying to cities with 75,000+ population. HB 2673 is unrelated.
Permitted ADU Types
- Detached ADU: Standalone structure on the lot
- Attached ADU: Addition to primary home with own entrance
- Garage Conversion: Converting existing garage to living space
Size Limits
| ADU Type | Maximum Size |
|---|---|
| Detached ADU | 1,000 sq ft or 50% of primary dwelling |
| Attached ADU | 50% of primary dwelling floor area |
| Garage Conversion | Existing footprint |
Setbacks
- Front: Base zone standard (typically 20–25 ft)
- Side: 5 feet minimum
- Rear: 5–10 feet minimum
Height
- Detached ADU: Maximum 18 feet
- Cannot exceed primary dwelling height
Parking
One additional off-street parking space required per ADU.
Permit Process
- Verify zoning: Contact Glendale Planning Division
- Submit plans: Architectural and site plans
- Review: Zoning and building compliance
- Building permit: Issued after approval
- Inspections: All required phases
- Certificate of Occupancy: Before occupancy
Contact
Glendale Planning Division 5850 W. Glendale Ave, Glendale, AZ 85301 Phone: (623) 930-2800 Website: glendaleaz.com/planning
Disclaimer: Verify current requirements with the Glendale Planning Division before starting any project.
More about Glendale Zoning
Sources
- Glendale Zoning Code — Residential Districts·library.municode.com·Accessed 2026-04-07·Direct link
- City of Glendale Planning Division·glendaleaz.gov·Accessed 2026-04-07·Direct link
FAQ
Are ADUs allowed in Glendale, Arizona?
Arizona's casita statute is HB 2720 (2024), codified at A.R.S. §9-461.18, applying to cities with 75,000+ population. HB 2673 is unrelated.
What is the maximum ADU size in Glendale?
Detached ADUs in Glendale are generally limited to 1,000 square feet or 50% of the primary dwelling's floor area, whichever is less.
Disclaimer: The information on this website is provided for general informational purposes only and does not constitute legal, financial, or professional advice. Always verify current requirements with your local planning department.