NM HB17

Requires all zoning authorities in New Mexico, including home rule municipalities, to permit at least one accessory dwelling unit (ADU) per residential lot regardless of lot size, with ADUs allowed to be up to 1,000 gross square feet minimum

Mandates multifamily housing be permitted in all residential and commercial zoning districts and within one-fourth mile of major public transit locations (rail stations, bus stops with 15-minute service intervals, or park-and-ride facilities)

Prohibits local governments from imposing owner-occupancy requirements on ADUs, charging additional impact fees when existing utilities are sufficient, or requiring more than one parking space per ADU

Sets minimum standards for ADUs including 5-foot side/rear setbacks from property lines and allows ADUs to be attached or detached, occupy existing structures, and share or have separate driveways and utilities

Establishes that local ordinances, HOA restrictions, or policies implemented after the 2026 effective date cannot delay or deny ADU building permits, and ADUs shall not count toward density limits