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

Milpitas does not impose a flat maximum building lot-coverage percentage on single-family (R1) lots in its Residential Zones Development Standards. Instead, the buildable envelope on an R1 lot is shaped by the front, side, rear, and street side setbacks in Table B.4.030-A, the 30-foot primary-building height limit, minimum lot area (10,000 sf for R1-10 down to 2,500 sf for R1-2.5), and front-yard coverage controls. Section B.4.040 (Residential Zones Supplemental Standards) addresses R1 front-yard coverage: the width of paved area in the required front setback must not exceed the width of the garage, or 50 percent of the lot width measured at the front property line, whichever is greater; patios in the required front setback count toward coverage, while walkways up to four feet wide do not. For denser residential districts, the table sets per-site usable open-space requirements rather than a building-coverage cap, including 20 percent for R3, 25 percent for R4, and 25 percent for the MHP zone (single-family dwellings are exempt from the usable open-space requirement). The 'H' Hillside Combining District has its own caps on residence size and impervious surface under Chapter B.22. Because coverage is regulated through this combination of setbacks, height, open space, and paving rules rather than one percentage, owners should consult Table B.4.030-A and Section B.4.040 for their specific zone and lot.