Lewisville does not have a standalone dark sky ordinance, but outdoor lighting is regulated through zoning standards in the Unified Development Code Chapter 114. Commercial and multifamily developments must use full-cutoff fixtures that direct light downward and minimize upward emission, with light levels at property lines adjacent to residential zones limited to 0.5 foot-candles. Residential exterior lighting is largely unregulated beyond general nuisance provisions in Chapter 42. The city does not mandate International Dark Sky Association-compliant fixtures or enforce specific color temperature limits. HOA communities such as Castle Hills and Valley Vista may regulate exterior lighting through their architectural review standards.
Lewisville addresses outdoor lighting primarily through its Unified Development Code Chapter 114 and site plan review requirements for commercial and multifamily developments. Commercial outdoor lighting must be directed downward and shielded to prevent direct glare onto adjacent properties and public roadways. Parking lot lighting in commercial zones must use full-cutoff fixtures that minimize upward light emission. Light levels at property lines adjacent to residential zones must not exceed 0.5 foot-candles. Residential exterior lighting is not subject to specific dark sky regulations, though excessive lighting that constitutes a nuisance may be addressed through the general nuisance provisions in Chapter 42. The city does not mandate International Dark Sky Association-compliant fixtures or enforce specific color temperature limits. HOA communities such as Castle Hills and Valley Vista may regulate exterior lighting through architectural review standards. The Lewisville Lake area benefits from the informal lower ambient light environment but has no formal dark sky protection zone. Contact the Planning Division at (972) 219-3430 for commercial lighting plan review questions.
Commercial developments that fail to install required shielded fixtures may receive stop-work orders or be denied a certificate of occupancy. Non-compliant parking lot lighting may require retrofit to meet full-cutoff standards. Residential lighting that rises to the level of a nuisance under Chapter 42 may result in a notice of violation and fines up to $500 per occurrence.
Lewisville, TX
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Lewisville, TX
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Lewisville, TX
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