Maricopa County Building Codes
Adopted codes, permits, inspections, septic and well rules, zoning setbacks, and fees for building in unincorporated Maricopa County, including the Rio Verde Foothills.
Maricopa County Building Permit and Impact Fees for a New Home: The Valuation Table
Unincorporated Maricopa County charges new-home permit fees by construction valuation, using Table 1-A, not by square foot. A $500,000 home pays a $3,233.75 permit fee plus a 65 percent plan review fee, about $2,102. The county levies no city-style water, sewer, or parks impact fees, since most lots use private septic and wells.
Read the referenceMaricopa County Grading and Drainage Permit: Drainage Clearance and Rio Verde Washes
A new home on unincorporated Maricopa County land needs a drainage clearance before the building permit issues, and a grading or paving job can need its own permit. A county grading matrix sets how detailed your grading and drainage plan must be, and a lot in a mapped floodplain also needs a floodplain permit.
Read the referenceMaricopa County Pool and Spa Barrier Permit: When It Is Required and the Rules
A swimming pool, spa, or any contained water over 18 inches deep or wider than 8 feet on unincorporated Maricopa County land needs a barrier permit issued before you install the barrier, plaster the pool, or fill it. The barrier must stand 60 inches tall with self-closing, self-latching gates.
Read the referenceMaricopa County Residential Building Permit Requirements: What You File and the Steps
A new home on unincorporated Maricopa County land needs a county building permit before any construction starts. You apply online through the county Permit Center with a site plan, the required documents, and your parcel and owner information. The decision engine routes you to the right application, staff reviews for code compliance, and the permit issues after fees are paid.
Read the referenceMaricopa County Solar PV Permit: Rooftop, Ground-Mounted, and the SolarAPP+ Path
A rooftop solar array on unincorporated Maricopa County land needs a minor residential electrical permit, and a ground-mounted array needs a residential accessory permit, both filed online. Eligible rooftop systems can run through SolarAPP+, an automated code-compliance review, but that step does not issue the permit by itself.
Read the referenceBuilding in Maricopa County?
Tell us your lot and we'll walk you through the codes, permits, and fees that apply.