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Zoning Guide

Mesa Zoning & Land Use Guide

Data-only stub — facts unverified locally. Confirm with the planning department before relying on details.
Last updated: Verified:

What we have on file vs. what to verify locally

We don't have editor-verified zoning prose for Mesayet. Here's the structured data we do have, and the highest-leverage steps to confirm specifics for your parcel.

What we have on file

Population:
504,258
County:
Maricopa County
State building code:
No mandatory statewide building code (local adoption)(statewide default)
State ADU law:
Yes — Arizona HB 2720 (2024), codified at ARS §9-461.18, requires municipalities with populations greater than 75,000 to allow at least one attached, detached, or internal accessory dwelling unit as a permitted use on any lot where a single-family dwelling is allowed. Effective January 1, 2025.
FEMA flood map:
Search flood zones
Planning department:
City of Mesa Planning Department
Municipal code:
View code online
Zoning map:
View city zoning map

Verify these locally

  • Call the City of Mesa Planning Department: (480) 644-2385
  • Search the municipal code for the chapter that covers your zoning district and proposed use.
  • Use the city zoning map to look up your parcel's zoning designation before applying for a permit.
  • Check FEMA flood zone for your parcel — flood-zone status changes setbacks, foundation requirements, and insurance.
  • Check your HOA CC&Rs and recorded deed restrictions — they are common in Mesa and frequently restrict ADUs, fences, and exterior changes beyond what zoning allows.

Key Zoning Facts

Planning Department
City of Mesa Planning Department(480) 644-2385
Building Code Edition
2018 International Building Code (locally adopted)
ADUs Allowed
Yes

Regulatory Layers That Apply in Mesa

Your property is subject to ALL of these regulatory layers. Each one can impose additional requirements beyond the others.

Federal

State — Arizona

  • Building Code: No mandatory statewide code (local adoption)
  • State ADU Override: Yes (Arizona HB 2720 (2024) / A.R.S. § 9-461.18 requires municipalities over 75,000 population (Mesa qualifies) to allow at least one attached and one detached ADU on single-family lots, capped at 75% of the primary dwelling or 1,000 sq ft (whichever is less).)
View Arizona zoning overview

County — Maricopa County

  • Role: Property records, tax assessment, unincorporated area planning

City / Municipal

The city's zoning ordinance, building codes, and local permits form the primary layer of land-use regulation for your property.

Overlay Districts

No overlay districts identified.

Private Restrictions

  • HOA / CC&Rs common: Yes
  • Check HOA CC&Rs for additional restrictions.

Statewide Context (Arizona)

Local data for Mesa is limited. The following state-level facts apply across Arizona and are inherited by this page until city-specific details are verified.

State Building Code
No mandatory statewide building code (local adoption)
State ADU Preemption
Yes — state law overrides local rules
Coastal Zone
No
Wildfire Zones
Yes

ADU Rules in Mesa

ADUs:Allowed
Max Size
1,000 sq ft
Max Height
25 ft
Rear Setback
5 ft
Side Setback
3 ft
Parking
1 off-street space required
Owner Occupancy
Varies by jurisdiction
Permit Timeline
30-90 days
Full ADU rules for Mesa →

Permit Costs & Timelines

Permit Costs & Timelines

Specific permit fee schedules for Mesa are available from the local planning department. Fees vary based on project type, scope, and valuation.

Check Mesa permit fees →

Official Sources

City-specific

City of Mesa Planning Departmentmesaaz.govOfficial sourceMesa Municipal Codelibrary.municode.comOfficial source

Frequently Asked Questions

What zones allow multi-family housing in Mesa?
Multi-family housing is typically permitted in R-3 and higher residential districts, as well as in certain commercial and mixed-use zones. Check the local zoning code for specific district allowances.