Outdoor Lighting in Hillsboro, OR (2026)
2 verified outdoor lighting rules for Hillsboro, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Hillsboro requires full cut-off shielding on any exterior fixture emitting more than 900 lumens (roughly a 60-watt incandescent bulb) on land that goes through Type II or Type III development review. The Community Development Code caps the fixture's beam angle at 90 degrees to cut glare onto neighboring property.
Hillsboro Outdoor Lighting Shielding Rules
Some RestrictionsHillsboro Community Development Code § 12.50.240(D)(2)
D.Light Trespass Standards.1.Light Trespass. Maximum lighting levels at property lines generally shall not increase lighting level more than 1.75 foot-candles 10 feet beyond the property line, as illustrated in Figure 12.50.240-A: [...] 2.Shielding. Any light source or lamp that emits more than 900 lumens (13 watt compact fluorescent or 60 watt incandescent) shall be concealed or shielded with ...
Light Trespass & Shielding
Hillsboro caps how much a development's exterior lighting can spill onto neighboring land: lighting reviewed under the Community Development Code cannot raise the light level more than 1.75 foot-candles measured 10 feet past the property line. The limit applies during Type II and Type III land use review, not as a standalone nuisance citation.
Hillsboro Light Trespass Property Line Limit
Some RestrictionsHillsboro Community Development Code § 12.50.240(D)(1)
B.Applicability. Except as provided in subsection E below, the standards of this section shall apply to all Type II and Type III development applications in which exterior lighting is proposed or required as a condition of approval, unless a Variance or Adjustment has been granted by the Review Authority pursuant to Section 12.80.140 Variances and Adjustments. [...] D.Light Trespass Standards.1...
Looking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hillsboro city rules.
Outdoor Lighting in Washington County →