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Phoenix Zoning & Land Use Guide

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Key Zoning Facts

Building Code Edition
2018 International Building Code (locally adopted)
ADUs Allowed
Yes
Primary District
R1-6 Single-Family Residential
Max Height
30 ft

Phoenix Zoning Overview

Phoenix, the fifth-largest city in the United States, administers its zoning through the Planning and Development Department. The city's zoning ordinance is contained in Chapter 6 of the Phoenix City Code, establishing a comprehensive framework of residential, commercial, and industrial districts. Phoenix's rapid growth has made land use planning a critical function, with the General Plan 2015 (updated periodically) providing long-range guidance.

The city's land use reflects its Sunbelt character: expansive low-density residential development, automobile-oriented commercial corridors, and emerging mixed-use nodes along the Valley Metro light rail line. Phoenix has been transitioning toward more transit-oriented development and infill strategies to reduce sprawl and make efficient use of existing infrastructure.

The desert environment presents unique land use challenges including extreme heat, flash flood management, and water conservation. Phoenix's zoning includes provisions for desert-sensitive design, shade requirements, and water-efficient landscaping standards.

Key Zoning Districts

Phoenix uses a detailed zoning system with single-family residential districts (R1-6, R1-8, R1-10, R1-14, R1-18), multi-family districts (R-2 through R-5), commercial districts (C-1 through C-3), and industrial districts. The city has also adopted transit-oriented and walkable urban zoning districts to support light rail development.

ADU Regulations

Phoenix adopted ordinances permitting ADUs in single-family residential zones, making it one of the more progressive Arizona cities on accessory dwelling units. Arizona has no statewide ADU law, so Phoenix's local provisions govern ADU development. ADUs must meet size, height, and setback standards, and one off-street parking space is required.

Development Process

Building permits are processed through the Planning and Development Department. Phoenix offers online permitting services for many project types. The Zoning Administrator handles administrative approvals, while the Board of Adjustment reviews variances and the Planning Commission considers rezoning applications.

Regulatory Layers That Apply in Phoenix

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)
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.

Primary Zoning Districts

R1-6Single-Family Residential
Min Lot
6,000 sq ft
Max Height
30 ft
Front Setback
20 ft
Side Setback
5 ft
Rear Setback
20 ft
R-3Multi-Family Residential
Min Lot
10,000 sq ft
Max Height
40 ft
Front Setback
20 ft
Side Setback
10 ft
Rear Setback
20 ft
C-2Intermediate Commercial
Min Lot
None
Max Height
56 ft
Front Setback
0 ft
Side Setback
0 ft
Rear Setback
0 ft

ADU Rules in Phoenix

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
Required for either primary or ADU
Permit Timeline
30-90 days

Permit Costs & Timelines

Permit Costs & Timelines

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

Check Phoenix permit fees →

Official Sources

Frequently Asked Questions

Can I build an ADU in Phoenix?
Yes. Phoenix adopted ADU-permitting ordinances allowing accessory dwelling units in single-family residential zones. Both attached and detached ADUs are permitted subject to size, height, and setback requirements.
How do I find the zoning for my property in Phoenix?
Use the City of Phoenix online zoning map at phoenix.gov/pdd or contact the Planning and Development Department at (602) 262-7811.
What zones allow multi-family housing in Phoenix?
Multi-family housing is permitted in R-3, R-4, R-5 residential districts and in many commercial zones throughout the city.