Zoning Report
Tucson, AZ Zoning
Tucson regulates land use through its Unified Development Code (UDC), which applies citywide and is supplemented by an Administrative Manual and a Technical Standards Manual. The city uses a broad set of base zones ranging from rural and single-family districts to office, commercial, and higher-intensity mixed-use areas, plus multiple overlay zones that can add extra rules in specific locations. Based on the sources provided, Tucson also has active entitlement and public-hearing processes for rezonings, special exceptions, appeals, and variances, with recent policy attention on accessory dwelling units and large-scale data center regulations.
Last researched May 2026
Zoning Districts in Tucson, AZ
RH
Rural Homestead zone intended to preserve rural character and orderly growth in rural areas.
Allowed uses: single-family residential (implied by zone description)
SR
Suburban Ranch zone for very low-density, large-lot single-family development and suburban ranch uses.
Allowed uses: single-family residential, suburban ranch uses
SH
Suburban Homestead zone for low-density, large-lot single-family development and suburban ranch and agriculture uses.
Allowed uses: single-family residential, suburban ranch uses, agriculture uses
RX-1
Suburban Residence zone for low-density single-family development, agriculture, and other compatible neighborhood uses.
Allowed uses: single-family residential, agriculture, compatible neighborhood uses
RX-2
Suburban Residence zone for low-density single-family development, agriculture, and compatible neighborhood uses.
Allowed uses: single-family residential, agriculture, compatible neighborhood uses
R-1
Urban Residence zone for low-density single-family development plus schools, parks, and public services.
Allowed uses: single-family residential, schools, parks, public services
R-2
Urban Residence zone for medium-density single-family and multifamily residential development plus public-serving uses.
Allowed uses: single-family residential, multifamily residential, schools, parks, public services
R-3
Urban Residence zone for higher-density residential development and other uses compatible with adjoining residential uses.
Allowed uses: residential development, other compatible uses
MH-1
Mobile Home zone for low- to medium-density residential development on individual lots and within mobile home parks.
Allowed uses: mobile homes on individual lots, mobile home parks, single-family residential
MH-2
Mobile Home zone for medium-density residential development of mobile homes on lots and within parks.
Allowed uses: mobile homes on individual lots, mobile home parks, single-family residential, residential care services
O-1
Office zone for administrative, medical outpatient, and professional office uses that complement nearby residential areas.
Allowed uses: administrative offices, medical outpatient, professional offices, residential uses in some cases
O-2
Office zone for office, medical, civic, and other uses reasonably compatible with adjoining residential uses.
Allowed uses: office, medical, civic, residential uses in some cases
O-3
Office zone for mid-rise office, medical, civic, and select other compatible uses.
Allowed uses: office, medical, civic, select other uses, residential uses in some cases
C-1
Low-intensity commercial zone intended to remain compatible with adjacent residential uses.
Allowed uses: low-intensity commercial, residential uses in some cases
C-2
General commercial zone serving community and regional markets.
Allowed uses: general commercial, residential uses in some cases
C-3
Mid-rise general commercial zone used downtown and in major activity centers.
Allowed uses: general commercial, higher-intensity commercial, residential uses in some cases
OCR-1
Office/Commercial/Residential zone intended for high-rise development in major activity centers or transit centers with encouraged mixed development.
Allowed uses: office, commercial, residential, mixed-use development
Recent Zoning Changes
The clearest recent adopted change in the provided sources is Tucson's October 2024 accessory dwelling unit amendment, which took effect November 21, 2024 and expanded ADU allowances in response to Arizona House Bill 2720. The provided planning materials also show an active 2026 review of proposed large-scale data center regulations, but the source set does not confirm final adoption.
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