Accessory Structures in Jersey City, NJ (2026)
1 verified accessory structures rules for Jersey City, New Jersey, sourced directly from the municipal code and official government pages.
Verified from official government sources
ADU Rules
Jersey City's zoning code lets homeowners in the RH-1, RH-2, R-1 and R-2 residential districts build one accessory dwelling unit in a detached accessory structure per lot, regardless of lot size, on top of the units already in the principal building. Under § 345-41, an R-1 ADU tops out at 18 feet and two stories, needs just a 2-foot side setback, earns a 5% lot-coverage bonus, and is exempt from off-street parking.
Jersey City ADU Zoning Standards
Some RestrictionsJersey City Code § 345-41(C)(9), (E)(12), (F)(5)
C. Permitted accessory uses are as follows: ... 9.Accessory Dwelling Units, one dwelling unit is permitted in an accessory structure per lot regardless of lot size and in addition to unit(s) in the principal structure. ... E. Density and Bulk Standards: ... 12.Standards for accessory buildings or structures:a.Maximum accessory building height:i)For Accessory Dwelling Units: 18 feet and two stor...