Sandoval County, NM Building Setbacks & Zoning: Lot Coverage Limits (2026)
Key Facts
- R1-35 max coverage
- 15%
- R1-15 max coverage
- 20%
- R1-8 / R1-6 max coverage
- 40%
- R1-5 max coverage
- 50%
- Governing section
- CZO § 12(1.1).E
- Max height, all districts
- 30 feet
Summary
Sandoval County limits how much of a single-family lot can be covered by buildings, from 15% on the largest-lot R1-35 district up to 50% on the compact R1-5 district. Section 12(1.1).E ties the cap to lot size, density and setbacks in a single development-standards table.
E.Yard, Height, Area, and Density Requirements. The following table outlines the minimum development standards within each district. Yard, height, and area requirements in excess of these minimum standards may be required in accordance with design standards outlined in Section 12(11).H. District R1-35 R1-15 R1-8 R1-6 R1-5 Maximum bldg. coverage 15% 20% 40% 40% 50%
Full Breakdown
E of the Comprehensive Zoning Ordinance sets out the Yard, Height, Area, and Density Requirements table governing the county's five Urban Single-Family Districts. Maximum building coverage rises as minimum lot size shrinks: the estate-style R1-35 district, with a 35,500-square-foot minimum lot, caps coverage at 15%; the R1-15 district, at 15,000 square feet minimum, allows 20%; the R1-8 and R1-6 districts each allow 40%; and the R1-5 district, the densest single-family category at a 6,000-square-foot minimum lot, allows 50% coverage. The same table sets the density, height and setback figures that interact with coverage: maximum height holds at thirty feet across all five districts, minimum front setbacks range from forty feet in R1-35 down to twenty feet in R1-5, and minimum side yards range from twenty feet down to zero for R1-5 lots with common walls.
H, so the percentages in the table are floors on open space, not automatic entitlements to build to the maximum. Because coverage is calculated per district rather than county-wide, a lot's zoning classification, not just its size, determines how much building footprint, garage and accessory structures combined, its owner may place on it.
Violations & Fines
Exceeding the district's maximum building coverage is a Zoning Ordinance violation caught during site plan or building permit review by the Zoning Officer under Section 15.G, or through a complaint investigated under Section 15.F. A written notice gives the owner 30 days to correct the excess coverage; failure to comply can result in a citation and a civil fine of up to $300 under Section 24, recordable as a lien on the property.
Frequently Asked Questions
What percentage of my lot can I build on in Sandoval County?
Does an accessory building count toward my lot coverage cap?
Can the county require lower coverage than the table allows?
Sources & Official References
Other rules in Sandoval County
Compare Sandoval County to another location·View the New Mexico building setbacks & zoning overview
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