Accessory Structures in Imperial County, CA (2026)

Imperial County Code § 90405.03(C), (D), (G)

The maximum floor area of an attached accessory dwelling unit shall not exceed fifty (50) percent of the existing living area or eight hundred fifty (850) square feet, whichever is greater (or one thousand (1,000) square feet for ADU's with more than one (1) bedroom). (Gov. Code, Section 65852.2, subds. (c)(2)(B) and (C))D.Any new detached ADU with a floor area above one thousand two hundred (1...

Imperial County Code § 90405.07(T)

Impact fee exemptions and limitations are based on the size of the ADU. ADUs up to seven hundred fifty (750) square feet are exempt from impact fees, and ADUs that are seven hundred fifty (750) square feet or larger may be charged impact fees but only such fees that are proportional in size (by square foot) to those for the primary dwelling unit. (Gov. Code, § 65852.2, subd. (f)(3))U.Property o...

Imperial County Code § 90405.08

Should a property have both an ADU and JADU, JADU law requires owner occupancy of either the newly created JADU or the single-family residence. Under this specific circumstance, a lot with an ADU would be subject to owner-occupancy requirements. (Gov. Code, § 65852.22, subd. (a)(2).)

Imperial County Code § 90501.12(G)

G.One detached access building for use as a private garage or similar private use may be permitted to occupy the front yard, outside of the front and side yard setbacks, of an interior lot in the R-1, R-2, R-3 and R-4 zones, when the slope of the front half of such lot is greater than two-foot rise or fall in the horizontal distance of four feet from the established street elevation at the fron...

Imperial County Code § 90405.07(F)

When a garage, carport, or covered parking structure is demolished in conjunction with the construction of an ADU, or converted to an ADU, the local agency shall not require that those off-street parking spaces of the primary unit be replaced.

Imperial County Code § 91002.40

The California Residential Code 2019 Edition defines a tiny home as a dwelling that is four hundred (400) square feet or less in floor area, excluding lofts. Tiny homes are dwellings. A dwelling is considered by building codes to be used as a non-transient occupancy for the purposes of living, which includes sleeping and cooking. Dwellings are not for transient use, where occupants unfamilia...