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

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

D1 front setback
20 feet minimum
D1 side/rear setback
10 feet minimum
Rural R5 front setback
25 feet minimum
Administrative adjustment
Up to 20%, Zoning Administrator
Railroad-adjacent setback
40 feet minimum

Summary

In the D1 Low Density Residential zone, homes must sit back 20 feet from the primary frontage, 5 feet from a secondary frontage, and 10 feet from both side and rear property lines under UDC Table 5.8; rural R5 lots use a deeper 25-foot front setback instead.

These county ordinances apply to unincorporated areas of Doña Ana County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Principal building, accessory building, setbacks and building height. One principal building shall be built at the primary frontage. Required building placement, setbacks and building heights shall conform to Tables 5.4 through 5.17. ... 5. Principal Building E Primary frontage: 20 feet (minimum) F Secondary frontage: 5 feet (minimum) G Side setback: 10 feet (minimum) H Rear: 10 feet (minimum)

Full Breakdown

" 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. 10) tightens the primary frontage to 15 feet. " 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.

Violations & Fines

Building into a required setback, closer than 20 feet from the front lot line, 10 feet from the side or rear in the D1 zone, or the equivalent figures in another zone, without an approved administrative adjustment or variance is a zoning violation subject to a stop-work order, and an encroaching structure cannot obtain a certificate of occupancy until the setback is corrected or a variance is granted under § 350-207.

Frequently Asked Questions

How far from the street does my house have to be in Doña Ana County?
In the D1 Low Density Residential zone, Table 5.8 sets the primary-frontage (front) setback at 20 feet minimum. Rural R5 and R5L lots use a deeper 25-foot front setback under Table 5.4, so the exact figure depends on the zoning district.
What are the side and rear setbacks for a typical house?
In the D1 zone, both the side and rear setbacks are 10 feet minimum under Table 5.8. Accessory buildings in the same zone get tighter setbacks of 5 feet on the side and rear.
Can the County reduce my required setback?
Yes, within limits. § 350-502D(1) lets the Zoning Administrator grant "an administrative adjustment... up to 20%... to accommodate specific site conditions," but anything beyond that percentage needs a formal variance under § 350-207.
Is there a special setback near railroad tracks?
Yes. § 350-502D(4) requires rear or side yard setbacks abutting railroad tracks to be a minimum of 40 feet, unless an earthen berm or other sound barrier is built along the property line next to the tracks.

Sources & Official References

Other rules in Doña Ana County

All Doña Ana County rules

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