Dark Sky Rules: Denton vs Lewisville

Does Denton have a dark sky ordinance?

Denton has outdoor lighting standards in its Development Code that incorporate dark-sky principles. New commercial, industrial, and multi-family lighting must be fully shielded to direct light downward and minimize glare and skyglow.

Do Denton dark sky rules apply to my house?

Single-family residential properties are generally exempt from the Development Code lighting standards. However, your HOA may have dark-sky covenants, and excessive residential lighting that creates a nuisance for neighbors can be addressed through the nuisance ordinance.

Are mercury vapor lights banned in Denton?

Mercury vapor lamps are prohibited in new lighting installations under the Development Code. Existing mercury vapor fixtures are grandfathered unless the property undergoes a major renovation requiring site plan review.

Does Lewisville have a dark sky ordinance?

No. Lewisville does not have a standalone dark sky ordinance. Commercial and multifamily lighting must use shielded full-cutoff fixtures under zoning standards, but there is no citywide dark sky regulation.

Can I complain about a neighbors bright outdoor lights?

Excessive residential lighting may be addressed as a nuisance under Chapter 42 of the Code of Ordinances. Contact Code Enforcement at (972) 219-3437 to file a complaint if a neighbors lighting creates an unreasonable disturbance.

What are the rules for commercial parking lot lighting?

Commercial parking lot lighting must use full-cutoff fixtures directed downward. Light levels at property lines adjacent to residential zones must not exceed 0.5 foot-candles. Plans are reviewed during site plan approval.