How Mountain View Handles Outdoor Lighting: A Practical Guide

Mountain View maintains 115 local ordinances across all categories, and 2 of those deal specifically with outdoor lighting. Here is a breakdown of what the city actually requires, what is prohibited, and where Mountain View falls on the strict-to-permissive spectrum compared to other cities.

Dark Sky Rules

Mountain View requires shielded outdoor lighting for new commercial and multi-family developments to minimize glare and skyglow. Title 24 Part 6 lighting efficiency standards apply to all new construction.

Key details: Shielding requirement: Fully shielded downward. Residential spillover: 0.5 foot-candles max. Commercial spillover: 2.0 foot-candles max. Closing reduction: Within 30 minutes. Title 24 controls: LED with auto controls.

Contact your local code enforcement office for specific penalty information.

Light Trespass

Light trespass across property lines in Mountain View is limited to 0.5 foot-candles in residential areas. Persistent light pollution causing nuisance can be reported to Code Enforcement for abatement.

Key details: Residential limit: 0.5 foot-candles at 5 ft. Measurement height: 5 feet above ground. Color temperature: Under 3000K recommended. Civil remedy: Civil Code 3479 nuisance. Enforcement: Code Enforcement investigates.

Contact your local code enforcement office for specific penalty information.

The Bottom Line

Mountain View's outdoor lighting rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Mountain View is broadly strict or permissive.

All of the above reflects Mountain View's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.