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

060's Building Size and Massing tables set Lancaster's maximum lot coverage percentages by residential zone. 5, the lowest-density zone with 100,000-square-foot minimum lots, and 40% in both RR-1 and SRR. On standard single-family and duplex lots, coverage rises to 40% in R-15,000 and R-10,000, 50% in R-7,000, and 45% for SFR corner lots and duplex lots, reflecting the smaller minimum lot sizes in those zones. Multi-family development gets the highest allowance: both the small apartment/condominium standard, for buildings of 3 to 15 units in the MDR or HDR zone, and the large apartment/condominium standard, for buildings of 16 units or more, cap coverage at 50% of the lot.

The code pairs these coverage caps with related massing controls; for example, small and large apartment buildings within 100 feet of an SFR zone are limited to 35 feet in height even though the zone's general maximum height runs higher, at 55 feet for small complexes and 72 feet for large ones. 240 describes as the portion of the lot remaining after deducting all required setbacks, so the coverage cap and the setback table in the same section work together to fix how much of a lot can actually be built on.