Modular home.

RCW 46.04.303
in effect
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"Modular home" means a factory-assembled structure designed primarily for use as a dwelling when connected to the required utilities that include plumbing, heating, and electrical systems contained therein, does not contain its own running gear, and must be mounted on a permanent foundation. A modular home does not include a mobile home or manufactured home. "Modular home" means a factory-assembled structure designed primarily for use as a dwelling when connected to the required utilities that include plumbing, heating, and electrical systems contained therein, does not contain its own running gear, and must be mounted on a permanent foundation. A modular home does not include a mobile home or manufactured home.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=46.04&full=trueFetched: 6/29/2026

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