Outdoor Lighting in Gaithersburg, MD (2026)
2 verified outdoor lighting rules for Gaithersburg, Maryland, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Gaithersburg regulates outdoor lighting through its zoning and development review process. New commercial and multi-family developments must use fully shielded fixtures that minimize light pollution and glare. Montgomery County adopted lighting standards that limit the amount of light trespass onto neighboring properties. Residential exterior lighting is less regulated but must not create a nuisance.
Gaithersburg Outdoor Lighting and Dark Sky Standards
Some RestrictionsLight Trespass
Gaithersburg prohibits outdoor lighting that unreasonably trespasses onto neighboring properties. Light from commercial or residential sources must not create a nuisance for adjacent property owners. New development must demonstrate compliance with light trespass limits during site plan review. Montgomery County nuisance provisions provide additional enforcement authority.
Gaithersburg Light Trespass Regulations
Some RestrictionsLooking for Montgomery County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Gaithersburg city rules.
Outdoor Lighting in Montgomery County →