Milpitas, CA Outdoor Lighting: Dark Sky Rules (2026)

Milpitas is not an International Dark-Sky community and has not adopted a stand-alone dark-sky lighting ordinance establishing maximum lumens, full-cutoff fixture mandates, or color-temperature (Kelvin) caps the way some rural or desert jurisdictions have. The closest codified glare-control standard sits in the Off-Street Parking Regulations, Municipal Code Section XI-10-53 (Design Standards, XI-10-53.13), which requires that all lights used to illuminate a parking area be designed, located, and arranged so as to reflect the light away from any street and any adjacent premises. That performance standard is aimed at preventing light and glare from spilling onto neighbors and roadways rather than at preserving the night sky generally. Beyond that provision, exterior lighting on new development is typically evaluated case-by-case through the City's design-review and site-development-permit process, where staff can condition projects to use shielded, downward-directed fixtures and to limit light spillover. Residents seeking specific shielding or intensity requirements for a particular project should consult the Planning Division, since the requirement is applied through project conditions and the parking-lighting standard rather than a single comprehensive lighting chapter. Because Milpitas is a built-out Bay Area city, its approach emphasizes nuisance- and neighbor-protection (light directed away from streets and adjacent premises) over astronomical dark-sky preservation.