5 county-level rules, plus city-specific rules for 4 cities in Monmouth County, New Jersey.
Verified from official government sources
Monmouth County does not regulate accessory dwelling units (ADUs) at the county level — under New Jersey's Municipal Land Use Law (N.J.S.A. 40:55D-1 et seq.), zoning authority belongs to each of Monmouth County's 53 municipalities. Asbury Park adopted a comprehensive ADU ordinance (Ord. 2024-7, effective 4/16/2024) including a state-funded grant program for affordable deed-restricted ADUs. New Jersey has no statewide ADU mandate.
Shed regulations in Monmouth County are set by municipal zoning codes. Typical NJ exemption is under 100-200 sq ft (varies by town). Larger sheds may need to match the principal structure's materials. Building permits required per NJ UCC for larger structures.
Garage conversions to habitable space in Monmouth County are regulated by each municipality's zoning ordinance and the statewide New Jersey Uniform Construction Code (N.J.A.C. 5:23). Monmouth County itself does not regulate garage conversions. Asbury Park's ADU ordinance specifically permits in-structure ADUs (which can include garage conversions); most other Monmouth municipalities require a use variance for a garage-to-ADU conversion.
Monmouth County carports require building permits under N.J.A.C. 5:23-2.14 and must meet municipal zoning setbacks, height limits, and lot coverage rules. Typical setbacks 5 to 10 feet from side property lines, further from front. Coastal zones require elevated construction. HOA restrictions common in planned communities. Pre-fabricated carport kits still require permits.
Monmouth County tiny homes fall under the NJ ADU law (P.L. 2024 c.38, effective 2025), which mandates municipalities permit ADUs by right on single/two-family lots. Tiny homes on permanent foundations may qualify as ADUs under this law. Tiny homes on wheels are classified as RVs under NJ Motor Vehicle Commission rules, with limited municipal zoning options for long-term residential use.
4 cities in Monmouth County have their own accessory structures rules. Each link goes to that city's dedicated page with code citations.
See every category we cover for Monmouth County — parking, noise, fences, fires, animals, pools, and more.
Monmouth County Ordinance Hub →