Light Trespass: Green Valley vs Tucson
How do light trespass rules compare between Green Valley, AZ and Tucson, AZ?
Green Valley and Tucson have similar restriction levels.
Green Valley, AZ
Pima County
Pima County Outdoor Lighting Code prohibits light trespass from outdoor fixtures onto adjacent properties. All fixtures must be fully shielded and directed downward to prevent spill onto neighboring parcels. Complaints about light trespass are handled through county code enforcement with particular rigor near the Kitt Peak Observatory buffer zone.
View full Green Valley rules →Tucson, AZ
Pima County
Tucson's Outdoor Lighting Code specifically addresses light trespass — light that spills onto neighboring properties or into the night sky from poorly aimed or unshielded fixtures. The code requires that outdoor lighting be directed downward and shielded to minimize light crossing property boundaries. Light trespass complaints are a common enforcement trigger.
View full Tucson rules →Key Facts Comparison
| Fact | Green Valley | Tucson |
|---|---|---|
| Property Line Limit | 0.5 footcandles max | 0.5 footcandles maximum |
| Shielding | Full-cutoff required | Full cutoff required |
| Direction | Downward aim only | - |
| Compliance Window | 30 days after notice | - |
| Enforcement | County Code Enforcement | - |
| Code Section | - | Tucson Code Ch. 6, Art. I |
| Common Violations | - | Unshielded flood/security lights |
| Correction Period | - | Typically 30 days |
Highlighted rows indicate differences between cities.
Green Valley FAQ
What is light trespass and is it regulated in Pima County?
Light trespass is light from an outdoor fixture spilling onto an adjacent property. Pima County strictly regulates it under the Outdoor Lighting Code. All fixtures must be fully shielded and aimed downward, with light at the property line not exceeding 0.5 footcandles in residential zones.
How do I report light trespass in Pima County?
File a complaint with Pima County Code Enforcement at 520-724-9000 or through the online portal. An inspector will evaluate the offending fixture and issue a notice of violation if it fails to meet the Outdoor Lighting Code requirements.
Tucson FAQ
My neighbor's lights shine into my bedroom. What can I do?
File a light trespass complaint with Tucson Code Enforcement through the 311 system. The Outdoor Lighting Code requires that fixtures be fully shielded and not cast more than 0.5 footcandles at the property line. Code Enforcement will inspect and issue a notice if violations are found.
What type of outdoor lights are allowed in Tucson?
All outdoor fixtures must be full cutoff (fully shielded) to direct light downward and prevent light from being emitted above the horizontal plane. Warm color temperatures of 3000K or less are required for new installations.
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