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For inquires and questions about Mobilehome

Registration and Titling: (800) 952-8356, (800) 735-2929 (TTY)

Assistance Center (Complaints): (800) 952-8356,

Residency Law Protection Program (MRL Complaints): (800) 952-8356,


Registration and Titling
P.O. Box 277820, Sacramento, CA 95827-7820

Registration and Titling — Registration Renewals
P.O. Box 26060, Sacramento, CA 95826-0600

Registration and Titling — Requestor Accounts
P.O. Box 276540, Sacramento, CA 95827-6540

State Housing Law
Employee Housing
Occupational Licensing
Mobilehome and Special Occupancy Parks
Manufactured Housing
Factory-Built Housing
P.O. Box 278180, Sacramento, CA 95827-8180

Mobilehome Assistance Center
Mobilehome Residency Law Protection Program
P.O. Box 278690, Sacramento, CA 95827-8690

Visit HCD

For in-person assistance with registration and titling for your mobilehome/manufactured home visit:

Codes and Standards Main Office
9342 Tech Center Drive, Suite 500, Sacramento, CA 95826
(800) 952-8356
(800) 735-2929 (TTY)
Registration and Titling District Office
1530 Hilton Head Road, Suite 107, El Cajon, CA 92019
(619) 441-2326
3737 Main Street, Suite 400, Riverside, CA 92501
(951) 782-4431
3220 South Higuera Street, Suite 103B, San Luis Obispo, CA 93401
(805) 549-3373

For in-person assistance with modifying your mobilehome/manufactured home, mobilehome park construction, permit requirements, or inspections, visit:

Northern Area Office
9342 Tech Center Drive, Suite 550, Sacramento, CA 95826
This office is currently closed for counter services. You can visit Suite 500 to drop off applications and documents for permits and inspections. Look for signs directing you to Suite 500. Enter the lobby. Leave materials in the designated location.
(800) 952-8356
(800) 735-2929 (TTY)
Southern Area Office
3737 Main Street, Suite 400, Riverside, CA 92501
(800) 952-8356
(800) 735-2929 (TTY)


During the COVID-19 health emergency, the area offices are closed to public for purposes of serving subpoenas.

Until further notice, subpoenas should be personally served upon the Legal Affairs Division (LAD) located at 2020 West El Camino, Sacramento, CA 95833.

Process servers are required to check in with the security guard in the lobby and contact LAD at (916) 263-7469. A member of LAD will then meet the process server in the lobby to accept service.

Subpoenas should include a check in the amount set forth in the California Evidence Code and be made payable to the California Department of Housing and Community Development.

For additional assistance, the Subpoena Coordinator can be contacted by email at or by phone at (916) 633-9710.