Paramount, CA Accessory Structures: Garage Conversions (2026)

Section 17.44.590 of the Paramount Municipal Code is the garage conversion rule, and its cutoff date is July 1, 1986. No conversion of a garage is permitted after that date unless it is in conformity with all applicable development standards. Any garage found to have been converted after July 1, 1986 is abated immediately. A garage converted before that date is deemed legal nonconforming.

A legal nonconforming conversion is not a free pass. Nothing in the section permits the continuation of substandard conditions found during an inspection by a building, health, fire or code enforcement inspector. If an inspection by the City turns up conditions that do not meet the provisions of the Paramount Municipal Code, the property owner must correct them within a reasonable period specified by the inspector at the time of the inspection.

Why the development standards bite. The parking rules sit behind the conversion ban. Section 17.44.460 requires each R-1 dwelling unit to have two off-street garage parking spaces with a 20-foot by 20-foot minimum interior dimension. The R-2 zone requires the same two garage spaces plus one guest parking space per unit, and the R-M zone requires two covered spaces per unit plus one guest space per unit. Section 17.08.080(B) adds that existing R-1 dwellings without garages can have carports subject to Development Review Board approval.

ADU route. Chapter 17.104 treats accessory dwelling units differently. When an existing detached or attached garage is converted to an ADU, no additional setbacks are required, subject to the zoning requirements including life safety, emergency egress and fire code requirements (§ 17.104.140). When a garage, carport or covered parking structure is converted to an ADU, the City does not require those off-street parking spaces to be replaced (§ 17.104.160). A plain living-space conversion outside the ADU process in the City of Paramount stays under § 17.44.590.