Redlands, CA Building Setbacks & Zoning: Lot Coverage Limits (2026)

110 states: "Maximum coverage by structures in the A-1 zone shall be ten percent (10%) of the lot area; provided, legal, nonconforming lots of less than one hundred fifty thousand (150,000) square feet in size are permitted to have the following lot coverage: A. Thirty percent (30%) of the first fourteen thousand (14,000) square feet of lot area; B. Twenty percent (20%) of the next additional twenty six thousand (26,000) square feet; C. 080, so a legal nonconforming lot far smaller than that minimum would be nearly unbuildable at a flat ten percent; the sliding scale instead front-loads more buildable area onto the smallest parcels and tapers down as lot size approaches the 150,000-square-foot threshold.

The standard traces to the 1955 code (Ord. 20(D)) and was amended by Ordinance 2147 in 1991 to add the tiered nonconforming-lot formula. 160(B), so a large detached shed can push a small nonconforming A-1 lot over its coverage limit even where it satisfies the shed's own size cap.