Pima County limits lot coverage by zoning district: GR-1 rural at 25%, suburban ranch at 30%, and urban-adjacent residential zones up to 40%. Includes all impervious surfaces.
Lot coverage in unincorporated Pima County measures the percentage of a lot covered by buildings, paved surfaces, and other impervious structures. GR-1 (General Rural) zones typically limit coverage to 25 percent. Suburban Ranch (SR) zones allow approximately 30 percent coverage. More urban-adjacent residential zones (TR, SH) may permit up to 40 percent. Coverage includes primary structures, garages, carports, accessory buildings, patios (if covered), pools, and paved driveways. Pervious pavers and decomposed granite driveways may receive partial credit depending on material type. Lot coverage limits work in conjunction with setback requirements and building height to control development intensity. Exceeding lot coverage requires a variance from the Board of Adjustment or a special exception from the Board of Supervisors.
Contact your local code enforcement office for specific penalty information.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Pima County, AZ
Pima County has no outdoor music or amplified sound ordinance for unincorporated areas. ARS 13-2904 applies to unreasonable noise. Event venues may have CUP ...
Pima County, AZ
Pima County regulates amplified music under the general noise ordinance. Sound amplification permits available for events. ARS §13-2904 applies.
Pima County, AZ
Pima County has no general decibel limits for unincorporated areas. Industrial zone performance standards exist. ARS 13-2904 uses a reasonable person standar...
Pima County, AZ
Pima County Code Chapter 9.30 and animal control code (Chapter 6.04) cover excessive animal noise. Pima Animal Care Center (PACC) handles barking dog complai...
Pima County, AZ
Pima County has no leaf blower ordinance for unincorporated areas. Desert landscaping minimizes need. ARS 13-2904 covers extreme noise. HOAs provide primary ...
Pima County, AZ
Pima County Code Chapter 9.30 prohibits excessive, unnecessary, or offensive noise that disturbs the peace or quiet of any neighborhood or causes discomfort ...
See how Pima County's lot coverage limits rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.