Solar Energy in Sammamish, WA (2026)
1 verified solar energy rules for Sammamish, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Panel Permits
Solar photovoltaic systems in Sammamish need more than a routine electrical permit. SMC 16.20.255(2)(f)(ix) names solar PV among the installations that trigger mandatory electrical plan review, meaning an engineer-level review of your system plans before the permit center will issue the permit under SMC 16.20.197.
Sammamish Solar Panel Electrical Permit Rule
Some RestrictionsSammamish Municipal Code § 16.20.255(2)(f)
(f) Plan Review Required. Electrical plan review is required for all new or altered electrical projects in the following occupancies and/or installations including but not limited to: ... (ii) Installations in occupancies except one- and two-family dwellings where a service or feeder rated 100 amperes or greater is installed or altered or if more than 100 amperes is added to the service or feed...
Looking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Sammamish city rules.
Solar Energy in King County →