Avondale, AZ Building Setbacks & Zoning: Lot Coverage Limits (2026)

The Section 28-35(A) single-family development standards table sets maximum building coverage at 15% for the AG, RR-43, and R1-35 districts; 30% for RR-18; 20% for R1-15; and 40% to 45% across R1-10, R1-8, R1-7, R1-6, and R1-5, the smallest-lot districts, which all sit at 45%. The Section 28-35(B) multi-family table caps R-2 and R-3 at 45% building coverage and allows R-4, the highest-density multi-family district, up to 50%. The ordinance separately states that any enclosed porch or patio cover, or one capable of being enclosed, counts as part of the main building when figuring lot coverage, and that all detached accessory buildings count toward the maximum allowable lot coverage on a lot as well, so a garage, shed, or covered patio can push a property over its cap even if the primary house alone would stay under it.