Maximum lot coverage in unincorporated Maricopa County is determined by the zoning district. The MCZO establishes maximum building coverage percentages for each district. Accessory structures cannot occupy more than 30% of any required yard. Rural districts have lower coverage maximums than suburban residential districts.
Maximum lot coverage in unincorporated Maricopa County is set by the MCZO for each zoning district, typically ranging from 15% in rural zones to 40% in higher-density residential zones. Accessory structures in required yards cannot occupy more than 30% of the required yard area. Lot coverage calculations include the footprint of all roofed structures such as the main dwelling, garages, carports, sheds, and covered patios. Uncovered patios, driveways, and walkways are generally excluded from lot coverage calculations but may count toward impervious surface limits in floodplain areas regulated by the Flood Control District of Maricopa County (FCDMC).
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Maricopa County code enforcement directly for current fines, enforcement procedures, and hearing options.
Maricopa County, AZ
Maricopa County Department of Transportation establishes loading zones along unincorporated county roads using ARS section 28-873 authority. Yellow-curb comm...
Maricopa County, AZ
Arizona Revised Statutes section 28-873 lets Maricopa County paint curbs to mark parking restrictions but does not lock in color meanings. The county Departm...
Maricopa County, AZ
Unincorporated Maricopa County applies Arizona Revised Statutes Section 36-1637, which requires an approved smoke detector in each new residential housing un...
Maricopa County, AZ
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Maricopa County, AZ
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Maricopa County, AZ
Federal HUD and EPA Renovation, Repair and Painting (RRP) rules govern lead-hazard work in pre-1978 rentals. Arizona ARS 33-1338 requires written disclosure ...
See how Maricopa County's lot coverage limits rules stack up against other locations.
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