Light Trespass: Fairfax vs Vienna
How do light trespass rules compare between Fairfax, VA and Vienna, VA?
Fairfax and Vienna have similar restriction levels.
Fairfax, VA
Fairfax County
Fairfax County's outdoor lighting standards address light pollution and skyglow by requiring full-cutoff fixtures, limiting wattage/lumens, setting maximum light levels at property lines, and imposing curfew provisions on commercial uses. The county has not adopted formal Dark Sky status but follows similar principles in the Zoning Ordinance Article 5 lighting provisions.
View full Fairfax rules →Vienna, VA
Fairfax County
While Vienna does not have a full dark-sky ordinance, the zoning code limits sky glow and upward light spill. Commercial properties must use full-cutoff fixtures for parking areas, and excessive upward-directed lighting is treated as a nuisance, particularly near Wolf Trap National Park.
View full Vienna rules →Key Facts Comparison
| Fact | Fairfax | Vienna |
|---|---|---|
| Fact | Full-cutoff fixtures required for most new outdoor lighting | Full-cutoff fixtures required in commercial zones |
Highlighted rows indicate differences between cities.
Fairfax FAQ
Does Fairfax County have a dark sky ordinance?
Not formally branded as such, but the Zoning Ordinance's outdoor lighting standards require full-cutoff fixtures and light trespass limits that embody dark-sky principles.
What about string lights in my backyard?
Residential decorative string lights are generally exempt. They should still not create glare or light trespass onto neighbors, and your HOA may have seasonal time limits.
Can commercial parking lots stay lit all night?
Generally no. Many zoning districts require parking lot lighting to reduce to security-level illumination or turn off after business hours plus a set period.
Vienna FAQ
Is my 5000K LED floodlight a problem?
Cool-white high-lumen floodlights are more likely to draw complaints. Switching to a warmer color temperature and lower wattage typically resolves concerns.
Can I operate a searchlight for a party?
Aerial searchlights and lasers directed upward from private property are generally prohibited and will draw immediate enforcement action.
Compare other topics
See how Fairfax and Vienna compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool