State Preemption of Local Zoning in New Jersey
How New Jersey state law overrides local zoning ordinances. ADU preemption, lot split preemption, and impact on city-level regulations.
What Is State Preemption?
State preemption occurs when a state law overrides local government ordinances in a specific area. In land use, preemption means a city or county cannot adopt zoning rules that are more restrictive than the state standard. If a city tries to prohibit something the state law permits, the state law wins.
New Jersey has limited preemption in housing law. Local governments generally have broad authority to regulate land use within their jurisdictions, subject to state constitutional and statutory limits.
How Preemption Affects New Jersey Cities
State preemption applies to every incorporated city and unincorporated area in New Jersey. Select a city below to see how state preemption interacts with local zoning rules.
Source: New Jersey State Law. Last verified April 5, 2026. View source