Building Setbacks & Zoning in Sonoma, CA (2026)
3 verified building setbacks & zoning rules for Sonoma, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Setback Rules
In the City of Sonoma's Northeast Planning Area, a home's required yard setbacks depend on its zoning district: R-M (Residential Medium Density) properties get a 15-foot front setback for a one-story building and 20 feet for two stories, while Mixed Use (MX) parcels have no fixed front setback at all and instead get a case-by-case standard set by the planning commission, per Sonoma Municipal Code § 19.18.020(A)(2).
Sonoma Setbacks: Northeast Planning Area
Some RestrictionsSonoma Municipal Code § 19.18.020(A)(2), Table 3-4 (R-M, MX Districts, Northeast Planning Area)
R-M | MX ... Front/Street-side1 | 15 ft., one-story 20 ft., two-story | A variety of setbacks, consistent with neighborhood conditions, shall normally be required at the discretion of the planning commission. ... Side: One-story | 5 ft. minimum, 15 ft. total. | 5 ft. minimum, 15 ft. total. ... Side: Two-story | 10 ft. minimum on two-story side | 8 ft. minimum on two-story side ... Rear | One-st...
Structure Height Limits
The City of Sonoma caps building height by zoning district and measures it from finished grade to a parallel plane rather than to the roof ridge in most cases. SMC 19.40.040 sets the measurement method and lists the only exceptions: extra height for rooftop equipment, chimneys, antennas, and a discretionary third-floor housing bonus.
Sonoma Structure Height Limit Rules
Some RestrictionsSonoma Municipal Code § 19.40.040
A. Maximum Height. ... The height of structures shall not exceed the standards established by Division III of this title, Project Design. The maximum height shall be measured as the vertical distance from the finished grade of the site to an imaginary plane located the allowed number of feet above and parallel to the grade. ... ... B. Exceptions to Height Limits. Exceptions to the height limits...
Lot Coverage Limits
In the City of Sonoma's Downtown district, SMC 19.34.020's dimensional table caps site coverage from 40 percent in the Residential-Low zone up to 100 percent in the Commercial zone, paired with floor-area-ratio limits ranging from 0.35 to 2.0. These figures apply only within the Downtown district's zoning designations, not citywide.
Downtown Sonoma Lot Coverage Limits
Some RestrictionsSonoma Municipal Code § 19.34.020(A), Table 3-27
| " | R-L | R-M | R-O | MX | C | ... | F.A.R. | 0.35 | 0.50 | 0.70 | 1.20 | 2.0 | | Site Coverage | 40% | 60% | 65% | 70% | 100% |
Looking for Sonoma County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sonoma city rules.
Building Setbacks & Zoning in Sonoma County →