Rocklin, CA Building Setbacks & Zoning: Setback Rules (2026)

Section 17.08.030 establishes how setbacks are measured citywide: from the exterior boundaries of streets and highways shown in the general plan's circulation element, or from Title 16 right-of-way standards where a street is not yet mapped. It also lets the primary structure in any residential zone project up to ten feet into the required rear setback if the lost square footage is replaced by a yard or court elsewhere on the lot, but the structure can never come closer than five feet to the rear property line.

Specific numbers vary by zone. In the R1-3.5 single-family zone, Section 17.09.080 requires a ten-foot front setback for the porch and living area, an eighteen-foot front setback to the face of a garage, a ten-foot rear setback for the primary structure, four feet to the vertical wall (and one foot to the eaves) for a rear structure open on three sides, a four-foot interior side setback with no encroachment by fireplaces or chimneys, and a ten-foot street side setback. The section also requires a clear two-hundred-square-foot rear yard or patio area, at least ten feet by twenty feet, within those setbacks.

Architectural features such as cornices, eaves and canopies may project up to three feet into a side, street-side or front setback under Section 17.08.050, but fireplaces must still keep a three-foot minimum from any side lot line. Other residential zones, such as R1-5, carry their own setback tables in their own chapters.