Mobile and Manufactured Homes

Installing or altering a mobile or manufactured home?

a manufacturered homeA manufactured home is a single-family dwelling built according to the Department of Housing and Urban Development (HUD) Manufactured Home Construction and Safety Standards Act, which is a national, preemptive building code.



a mobile home A mobile home is a factory-built dwelling built prior to June 15, 1976, to standards other than the HUD Code, that were acceptable under applicable state codes in effect at the time of construction or introduction of the home into the state. WAC 296-150M.

Permits Fees & Inspections

Purchase an alteration permit and schedule an inspection on a manufactured or mobile home. To help estimate costs, view the fee schedule or call or visit an L&I office near you.


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