Doña Ana County, NM Building Setbacks & Zoning: Setback Rules (2026)

Doña Ana County sets yard setbacks table-by-table for each of its zoning districts under § 350-502D, "Principal building, accessory building, setbacks and building height," which states that "required building placement, setbacks and building heights shall conform to Tables 5.4 through 5.17." In the D1 Zone, Table 5.8 sets the principal building's "Primary frontage: 20 feet (minimum)," "Secondary frontage: 5 feet (minimum)," "Side setback: 10 feet (minimum)," and "Rear: 10 feet (minimum)." Accessory buildings in the same D1 zone get their own, tighter setbacks: 25 feet from the primary frontage, 5 feet from the secondary frontage, and 5 feet on both the side and rear.

Setbacks are not identical countywide: the T2/R5/R5L Rural and Rural 5-Acre zones (Table 5.4) require a deeper 25-foot primary-frontage setback with 12-foot secondary, 5-foot side, and 5-foot rear, while the D3 High Density Residential zone (Table 5.10) tightens the primary frontage to 15 feet. Section 350-502D(1) lets the Zoning Administrator grant an administrative adjustment of "up to 20%... to accommodate specific site conditions." Two special rules override the table figures: rear or side setbacks abutting railroad tracks must be at least 40 feet under § 350-502D(4), and § 350-502D(6) requires at least six feet of separation between detached buildings on the same lot.