Building Setbacks & Zoning in Pima County, AZ (2026)
3 county-level rules, plus city-specific rules for 2 cities in Pima County, Arizona.
Verified from official government sources
Setback Rules
In unincorporated Pima County's GR-1 Rural Residential Zone, homes must sit at least 30 feet from the front line, 10 feet from the sides, and 40 feet from the rear, under Pima County Code § 18.14.040(C). The zone also caps building height at 34 feet and two stories.
Pima County GR-1 Zone Yard Setback Minimums
Some RestrictionsPima County Code § 18.14.040(C)-(F)
C. Minimum setback requirements: 1. Front: Thirty feet; 2. Side: Ten feet; 3. Rear: Forty feet. D. Height limitations: 1. Maximum height: Thirty-four feet; 2. Maximum stories: Two. E. Minimum distance between main buildings: Twenty feet. F. Maintenance of stock-tight fences: A stock-tight fence and necessary cattle guards shall be erected...
Structure Height Limits
In the unincorporated county's SR Suburban Ranch zone, Pima County Code § 18.17.040(D) caps the maximum building height at thirty-four feet. The same section sets a 30 percent maximum lot coverage, fifty-foot front and rear setbacks, and a twenty-foot minimum separation between main buildings on a lot of at least 144,000 square feet.
Pima County Rural Zone Building Height Cap
Some RestrictionsPima County Code § 18.17.040(A)-(F), incl. (D)
18.17.040 Development standards—General. a. Minimum site area: One hundred forty-four thousand square feet. B. Minimum lot area per dwelling unit: One hundred forty-four thousand square feet. C. Minimum setback requirements: 1. Front: Fifty feet; 2. Side: Ten feet each; 3. Side, when adjacent to street: Twenty feet; 4. Rear: Fifty feet. D. Maximum building height: Thirty-four ...
Lot Coverage Limits
In Pima County's SR Suburban Ranch zone, no more than thirty percent of a lot can be covered by structures, alongside a fifty-foot front and rear setback and a thirty-four-foot height cap. Other rural and residential zones in the unincorporated county set their own lot coverage percentages in their individual zone chapters. Section 18.17.040(E) sets the SR standard.
Pima County Suburban Ranch Zone Lot Coverage Cap
Some RestrictionsPima County Code § 18.17.040(E)
a. Minimum site area: One hundred forty-four thousand square feet. B. Minimum lot area per dwelling unit: One hundred forty-four thousand square feet. C. Minimum setback requirements: 1. Front: Fifty feet; 2. Side: Ten feet each; 3. Side, when adjacent to street: Twenty feet; 4. Rear: Fifty feet. D. Maximum building height: Thirty-four feet. E. Maximum lot coverage by structur...
Building Setbacks & Zoning by City in Pima County
2 cities in Pima County have their own building setbacks & zoning rules. Each link goes to that city's dedicated page with code citations.
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