Solar Energy in Snohomish County, WA (2026)

1 county-level rule, plus city-specific rules for 2 cities in Snohomish County, Washington.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Snohomish County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Panel Permits

Rooftop solar photovoltaic systems on detached single-family homes in unincorporated Snohomish County skip the mechanical permit if they meet the eleven-point checklist in SCC 30.50.103(3)(h)(ii): engineered mounting, roof-compliant weight limits, and proper flashing. Every system still needs an approved electrical permit, and larger or non-residential installations follow the standard construction permit process instead.

Solar Panel Permits in Snohomish County

Some Restrictions

SCC 30.50.103(3)(h)(ii)

Specific to the residential code: ... (ii) Photovoltaic (PV) panels meeting all of the following criteria: (A) PV system is designed and proposed for a detached single-family house. (B) PV system is designed for the rooftop of a house in compliance with applicable codes... (E) PV system has an approved and issued electrical permit. (F) To address uplift, panels are mounted no higher than 18 inc...

Full ordinance details →Official source ↗

Solar Energy by City in Snohomish County

2 cities in Snohomish County have their own solar energy rules. Each link goes to that city's dedicated page with code citations.

MarysvillePop. 70,714

1 verified rule • Panel Permits

LynnwoodPop. 38,568

1 verified rule • Panel Permits

All Snohomish County ordinances

See every category we cover for Snohomish County: parking, noise, fences, fires, animals, pools, and more.

Snohomish County Ordinance Hub →