Doña Ana County, NM Parking Rules: Commercial & Oversized Vehicles (2026)

Section 350-502B(8) of the Unified Development Code draws a bright line for heavy vehicles parked on residential property: any commercial vehicle with more than six wheels, and any semitruck or semitrailer, is barred from residential areas outright, with a narrow carve-out for reasonable loading and unloading periods. Farm equipment gets its own exemption, since agricultural vehicles parked on farms for on-site farm operations are excluded from the restriction entirely. The code allows one limited exception for a semitruck cab with no attached trailer: it may be parked on a residential property, but only if the lot is three-quarters of an acre or larger, and even then it cannot sit in the front yard or anywhere forward of the front building line of the residential structure.

That placement restriction means a cab-only truck has to be parked beside or behind the house, not visible from the street in front of it. The rule is written into the general-to-all-zones article, so it applies to every residential zoning district in the unincorporated county regardless of lot classification, and it is a separate provision from the county's rules on RV and trailer parking in the same subsection group. Las Cruces, Sunland Park, Mesilla and Hatch each set their own commercial vehicle parking standards inside their incorporated limits.