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

Section 18.12.050(G) of the Gardena Municipal Code sets the yard setbacks for the R-1 single-family zone in three numbered standards. The front yard setback is twenty feet, measured from the front lot line as defined in Section 18.04.010. The side yard setback is a minimum of five feet for an interior lot, rising to a minimum of ten feet for a corner lot's street side, since a corner lot carries two street frontages that both need clearance. The rear yard setback is ten feet for a new dwelling or an addition, but the code allows a reduced five-foot rear setback for an existing single-story dwelling unit that was built before the current standard applied, recognizing that many older Gardena homes were platted under earlier, tighter yard rules.

These yard standards work alongside the zone's other Section 18.12.050 limits: a minimum five-thousand-square-foot lot area, fifty-foot lot width for interior lots or fifty-five feet for corner lots, and an eighty-foot minimum lot depth. Section 18.12.050(H) separately requires six feet of clearance between the main house and any accessory building regardless of where that building sits relative to the yard lines, and Section 18.12.050(G)(4) sets a distinct four-foot setback for one-story accessory buildings placed in the rear third of the lot.