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Sandoval County, NM Outdoor Lighting: Light Trespass & Shielding (2026)

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

Key Facts

Core Rule
Light must stay within originating property
Sign Curfew
Off 11 p.m.-sunrise unless business open
Applies To
New non-residential dev., La Cueva Overlay
Parallel Rule
CD-WP/CD-LP/CD-IASF bar light onto residences
Enforcement
Zoning Officer citation, $300 civil fine

Summary

New non-residential lighting in the La Cueva Design Overlay Zone can't spill past the property line. Section 9(2.5)(C)(7)(d) requires exterior lighting to be shielded so emitted light is confined within the boundary of the property where it originates.

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

d.Exterior lighting shall be shielded in such a manner as to confine emitted light within the boundary of the property from which it originated...f.Any illuminated on-premise advertising sign shall be turned off between 11:00 P.M. and sunrise except that on-premise signs may remain illuminated while a business is open to the public.

Full Breakdown

Subsection C(7)(d) of the La Cueva Design Overlay Zone standards works alongside the shielding and downward-focus rules in the same paragraph, but it targets a different problem: light spilling off the lot line onto a neighbor. It requires exterior lighting to be shielded so that emitted light is confined within the boundary of the property where it originated, a stricter standard than merely pointing a fixture down. and sunrise, unless the business is open to the public during those hours, which limits nighttime glare from commercial frontages even after work lighting shuts off.

5) design standards, it applies only to new non-residential development and expansions within the mapped La Cueva Overlay Zone. 9)(D)(4)(d), covering West Placitas, Las Placitas, and Ideal Acres/San Francisco, each require that exterior lighting be shielded in such a manner so that it does not shine onto any adjoining residential properties, a directly neighbor-focused version of the same light-trespass protection.

Violations & Fines

Letting light spill past the property line, or leaving an illuminated sign lit past 11 p.m. when the business is closed, violates Section 9(2.5)(C)(7). The Zoning Officer can cite the property under Section 24 for a civil fine of up to $300, which becomes a lien if unpaid; a neighbor whose property rights are adversely affected also has standing to raise the issue on appeal under Section 22.

Frequently Asked Questions

Can my neighbor's business lighting shine onto my residential property in Sandoval County?
Not if it's new non-residential development in a district with adopted design standards. Section 9(2.5)(C)(7)(d) requires lighting in the La Cueva Overlay Zone to stay within the property line where it originates, and West Placitas, Las Placitas, and Ideal Acres/San Francisco district rules separately bar light from shining onto adjoining residential lots.
Do illuminated business signs have to turn off at night?
Yes in these design-standard districts. Section 9(2.5)(C)(7)(f) requires illuminated on-premise advertising signs to go dark between 11:00 p.m. and sunrise, unless the business remains open to the public during those hours.
What can I do if a neighboring business's lighting trespasses onto my land?
You can report it to the County Zoning Officer, who may issue a Section 24 citation carrying a civil fine of up to $300; under Section 22, an adjoining property owner whose rights are adversely affected also has standing to appeal a zoning decision.

Sources & Official References

Other rules in Sandoval County

All Sandoval County rules

Compare Sandoval County to another location·View the New Mexico outdoor lighting overview

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