Dark Sky Rules: Allen vs Plano
How do dark sky rules rules compare between Allen, TX and Plano, TX?
Allen and Plano have similar restriction levels.
Allen, TX
Collin County
Allen has no formal dark-sky ordinance but requires shielded fixtures on commercial properties and limits spillover to 0.5 foot-candles at residential property lines. Parking lot lights must use full-cutoff fixtures after 11 PM.
View full Allen rules →Plano, TX
Collin County
Plano's zoning ordinance includes outdoor lighting standards for new development. Commercial and multi-family projects must submit lighting plans showing shielded, downward-directed fixtures. Plano does not have a formal dark sky ordinance but addresses light pollution through its development standards. The city's proximity to the Dallas metroplex means regional light pollution is significant.
View full Plano rules →Key Facts Comparison
| Fact | Allen | Plano |
|---|---|---|
| Residential Spillover | 0.5 foot-candles max | - |
| Commercial | Full-cutoff fixtures | - |
| Curfew | 11 PM for parking lots | - |
| IDA Status | Not designated | - |
| Shielding | - | Required for new commercial development |
| Dark Sky Ordinance | - | No formal ordinance |
| Lighting Plans | - | Required for site plan review |
| Regional Context | - | Dallas-Fort Worth metroplex light pollution |
Highlighted rows indicate differences between cities.
Allen FAQ
Do residential homes need dark-sky lighting in Allen?
No specific requirements for homes, but lights cannot create excessive spillover or glare onto neighboring property under the nuisance provisions.
Who enforces this in Allen?
Allen code enforcement at (214) 509-4100 handles complaints.
Plano FAQ
Does Plano have dark sky regulations?
Plano does not have a formal dark sky ordinance, but development standards require shielded, downward-directed lighting for new commercial and multi-family projects.
Is light pollution regulated in Plano?
Through development standards rather than a dedicated ordinance. New projects must submit lighting plans showing compliance with shielding and direction requirements.
Compare other topics
See how Allen and Plano compare on other ordinance categories.
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