Before beginning any work to alter your mobilehome, manufactured home, commercial modular, special purpose commercial modular or multifamily manufactured home, you must first obtain a permit.
Please note: A C-47 General Manufactured Housing Contractor license is required for any contractor that installs or prepares for moving any manufactured home, mobilehome, or multifamily manufactured home.
Manufactured Homes Alterations and Permit Guidelines
Information on HCD’s permitting requirements, assists in determining what constitutes an alteration to a manufactured home or mobilehome, and identifies when form HCD MH 415 (PDF), engineered plans, electrical load calculations, and/or product manufacturer’s specifications are required. (HCD MH 604)
Manufactured Homes Alterations and Permit Guidelines - English (PDF)
Manufactured Homes Alterations and Permit Guidelines - Spanish (PDF)