Prince William County, VA Outdoor Lighting: Light Trespass & Shielding (2026)
Key Facts
- Measurement unit
- Foot-candles at grade
- Fixture requirement
- Full cut-off, downward
- Zoning sections
- § 32-250.202 to 250.205
- Subdivision lighting
- § 25-30
- Single-family homes
- Largely exempt
Summary
Prince William County measures outdoor light in foot-candles under its Chapter 32 lighting standards (§ 32-250.202) and Subdivisions Code § 25-30. Site and subdivision lighting must be shielded and limited so glare and spillover onto neighboring residential property are controlled.
Foot-candles are a quantitative unit of measure used to measure the brightness of light falling on a surface. One foot-candle is equal to the amount of light falling on a surface of one foot square from a standard candle located one foot away, and measurements shall be made with a photometric light meter at grade.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 46 Update 4).
Full Breakdown
The county's outdoor-lighting standards regulate light trespass by requiring full cut-off, downward-directed fixtures and limiting foot-candle levels, especially near residential property lines. A foot-candle is defined as the amount of light falling on a one-square-foot surface from a standard candle one foot away, measured with a photometric meter at grade. Nonresidential (§ 32-250.203) and multifamily (§ 32-250.205) uses have specific standards, and subdivision lighting must meet § 25-30 and the design manual. Existing single-family homes are largely exempt, so a neighbor's floodlight glare is often a private nuisance matter rather than a code violation. Confirm applicable limits with Development Services.
Violations & Fines
For regulated site/subdivision projects, lighting that exceeds foot-candle limits or spills onto adjoining lots can be denied approval or required to be shielded or reaimed.
Frequently Asked Questions
Can I report a neighbor's bright floodlight?
How is outdoor light measured?
Sources & Official References
Other rules in Prince William County
Compare Prince William County to another location·View the Virginia outdoor lighting overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.