Phoenix Zoning Ordinance Section 701 sets lot coverage maximums by district. R1-6 allows 40%, R1-8 allows 35%, R1-10 allows 30%, and R-2 allows 45%. When 100% lot coverage is permitted (by right or sustainability bonus), interior setbacks may be reduced or eliminated with Design Review Committee approval.
Phoenix zoning code limits maximum lot coverage, defined as the percentage of a lot covered by buildings, driveways, patios, and other impervious surfaces. Typical residential limits are 40 to 60% depending on zoning district and lot size. Lot coverage calculations include primary structures, accessory buildings, paved areas, and covered patios. Permeable pavers may receive partial credit in some jurisdictions. Exceeding lot coverage requires a variance. Stormwater management requirements may apply to highly impervious lots.
Exceeding lot coverage: correction required. May need to remove impervious surface. Fines $200 to $1,000.
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