ADU rules in Las Cruces, NM — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Las Cruces allows accessory dwelling units and casitas by right in all residential zones under the Realize Las Cruces Development Code adopted February 18, 2025. A building permit is required to build one.
The Realize Las Cruces Development Code, adopted February 18, 2025, legalized casitas and accessory dwelling units by right in every residential zone - a major change from the prior code that largely blocked them. The reform also cut minimum lot widths and setbacks and added flexibility on building height to make backyard units feasible. New Mexico has no statewide ADU statute, so the city's development code controls; a 2023 state bill (HB 425) that would have set uniform ADU rules died in committee. A building permit and code-compliant construction are still required for any casita.
Building a casita without a permit, or one that violates zoning setbacks or the building code, can bring a stop-work order, double fees, and an order to correct or remove the structure.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Las Cruces lets residents put up holiday decorations without a permit. Under the Land Development Code, decorations for national holidays and community festi...
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Las Cruces caps garage and yard sale signs at 3 square feet. Under Land Development Code Sec. 36-84, off-premises directional signs are allowed only during t...
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Las Cruces allows political signs up to 32 square feet each. Under Land Development Code Sec. 36-86, signs may go up no sooner than 90 days before an electio...
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Las Cruces does not register or inspect standard long-term rentals, and conventional landlords need no city rental license. Only short-term rentals must regi...
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Las Cruces has no just-cause eviction law. New Mexico's Uniform Owner-Resident Relations Act governs: a landlord may end a month-to-month tenancy with 30 day...
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Las Cruces has no rent control. New Mexico's Rent Control Prohibition Act (NMSA 47-8A-1, enacted 1991) bars every city and county from capping rent on privat...
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