Outdoor Lighting in Bothell, WA (2026)
2 verified outdoor lighting rules for Bothell, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
BMC 12.14.240 regulates exterior lighting in the City of Bothell, Washington to cut light trespass, glare, and sky glow. It sets curfews that dim parking lot lighting to 25 or 50 percent of normal output, caps pole heights at 15 to 25 feet, and requires house-side shields on fixtures near neighboring property.
Exterior Lighting and Shielding Rules in Bothell, WA
Some RestrictionsBothell Municipal Code § 12.14.240
A. Purpose. The purpose of this section is to regulate exterior lighting by promoting the principles of good lighting design, including: ... 2. Minimize adverse off-site impacts including light trespass, glare, and night glow; ... 4. Curtail light pollution and preserve the night-time environment. ... “Fully shielded luminaire” means a luminaire typically with opaque top and sides, capable of o...
Light Trespass & Shielding
In the City of Bothell, Washington, BMC § 12.14.240 lists minimizing off-site light trespass as a purpose of its exterior lighting rules and defines it as unwanted light that falls on neighboring properties. Fixtures within two mounting pole heights of an adjacent property need house-side shields, and BMC § 8.64.030 bans glare toward public rights-of-way.
Bothell Light Trespass and Exterior Lighting Rules
Some RestrictionsBothell Municipal Code § 12.14.240
2. Minimize adverse off-site impacts including light trespass, glare, and night glow; ... “Light trespass” means unwanted light that falls on neighboring properties. ... (3) All light fixtures within two mounting pole heights of any adjacent property (excluding public rights-of-way) that are not building mounted must be facing in toward the project and have house-side shields consistent with Fi...
Looking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Bothell city rules.
Outdoor Lighting in King County →