State Preemption of Local Zoning in New Mexico
How New Mexico 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 Mexico 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 Mexico Cities
State preemption applies to every incorporated city and unincorporated area in New Mexico. Select a city below to see how state preemption interacts with local zoning rules.
Source: New Mexico State Law. Last verified April 5, 2026. View source