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Site Plans approved in every county in every state
| County | Permit Authority | Site Plan Notes |
|---|---|---|
| Maricopa County | Maricopa County Planning & Development Department | Seven (7) copies of the site plan are required per application, as plans are reviewed concurrently by multiple departments including Flood Control, Environmental Services, and the Department of Transportation (per Zoning Ordinance Section 1501.3.3, effective January 9, 2026). Site plans must show all property lines, actual building setbacks, driveway dimensions, and the location of any wells or septic systems. |
| Pima County | Pima County Building & Site Development | Electronic submittal is required for all Site Construction Permits via permits.pima.gov, including a DWG project boundary file. Site plans are required for new construction, additions, accessory structures, and grading permits in unincorporated areas; the City of Tucson handles permits within city limits. |
| Yavapai County | Yavapai County Community Development | Properties in and around Prescott may fall within Wildland Urban Interface (WUI) zones or floodplain overlay districts, triggering additional documentation requirements. Structures in historic preservation districts or airport impact areas in Prescott also require supplemental review under the 2024 International Residential Code and 2024 International Building Code. |
| Coconino County | Coconino County Community Development | Home to Flagstaff and the San Francisco Peaks, Coconino County includes high-altitude terrain, wildland-urban interface zones, and areas subject to floodplain regulations. Site plans must address slope, drainage, and setbacks; WUI designation can require additional fire-safety documentation. |
| Mohave County | Mohave County Planning & Zoning | Site plans are required for new construction, additions, and accessory structures in unincorporated Mohave County. Properties near the Colorado River may be subject to floodplain use permit requirements in addition to standard building permit submissions. |
| Yuma County | Yuma County Planning & Zoning | Site plans are required for building permits in unincorporated Yuma County; agricultural and irrigation easements are common in this region and should be reflected on the site plan where applicable. The City of Yuma handles permits within city limits separately. |
| Pinal County | Pinal County Planning & Development | Pinal County is one of the fastest-growing counties in the United States, encompassing rapidly expanding communities such as Casa Grande, Queen Creek, and Maricopa. High permit volume means site plan accuracy is especially important for timely approvals; drainage and floodplain considerations are common given desert wash activity. |
| Cochise County | Cochise County Development Services | Site plans are required for all building permit applications in unincorporated Cochise County, including new construction, additions, accessory structures, and manufactured home installations. Properties at higher elevations near Sierra Vista or Bisbee may have additional grading and drainage requirements. |
| Navajo County | Navajo County Community Development Services | Navajo County covers a large, geographically diverse area including Show Low and Winslow. Properties near washes and low-lying areas frequently trigger floodplain use permit requirements; site plans must show drainage flow and proximity to any identified flood zones. |
| Apache County | Apache County Development Services | Apache County encompasses remote, high-elevation terrain in northeastern Arizona, including portions of the White Mountain Apache Tribal lands and the towns of St. Johns and Springerville. Site plans for new construction and additions are required for county building permits; verify tribal land jurisdiction separately if applicable. |
| Gila County | Gila County Community Development | Gila County includes hillside and canyon terrain around Globe, Payson, and the Tonto National Forest area. Properties on slopes exceeding 10% may be subject to hillside ordinance requirements similar to Phoenix’s, and site plans should clearly depict existing grade, drainage, and setbacks from natural features. |
| Graham County | Graham County Planning & Zoning | Graham County, anchored by Safford, requires site plans for building permit applications in unincorporated areas. The Gila River corridor within the county may trigger floodplain use permit requirements for properties in or near mapped flood zones. |
| Greenlee County | Greenlee County Planning & Zoning | Arizona’s least populous county, Greenlee County includes the rugged terrain around Clifton and Morenci. Site plans are required for new construction and additions; the San Francisco River and its tributaries create floodplain overlay zones that may affect buildable area and setback requirements. |
| La Paz County | La Paz County Community Development | La Paz County, home to Parker and Quartzsite, borders the Colorado River, so many properties are subject to FEMA floodplain maps and may require floodplain use permits in addition to standard building permit site plans. Seasonal population spikes in Quartzsite mean permit timelines can vary. |
| Santa Cruz County | Santa Cruz County Planning & Zoning | Santa Cruz County, centered on Nogales along the U.S.–Mexico border, requires site plans for building permits in unincorporated areas. Properties near the Santa Cruz River may be subject to floodplain use permit requirements; proximity to the international border can also trigger additional agency coordination for certain development projects. |