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

5, R-1-9, and R-1-15 alike, and holds residential structures to a flat 40 percent of total lot area; a meeting facility can exceed that only through Conditional Use Permit approval, up to a maximum of 75 percent. Table 2-5 governs the denser R-2 and R-3 districts plus TV-R: coverage climbs with density, from 50 percent in R-2 to 55 percent in R-3-10, 60 percent in R-3-15, 65 percent in R-3-18, 75 percent in both R-3-30 and R-3-HD, and up to 100 percent in the TV-R (transit village) district.

040 (Residential District Subdivision and Density Standards) for the underlying density and lot standards that these coverage figures pair with. Coverage is reviewed alongside setbacks, height limits, and parking requirements at building permit and zoning clearance stage; a Subdivision or Conditional Use Permit approval can also establish project-specific coverage figures based on site characteristics, environmental constraints, or surrounding context, in place of the table default. Property owners planning additions, second stories, garages, or accessory structures need to run the total footprint of all structures on the lot, not just the new work, against these percentages before submitting for a building permit, since Planning staff checks coverage as part of plan review.