Manufactured Home Permits & Setup in El Cajon, CA

11/9/2026

Buying a manufactured home in El Cajon is about more than picking a floor plan. Before anyone can live in it, the home has to be installed with the right permits and inspections, and who issues those permits depends on where the home is going. This guide walks El Cajon and East County buyers through what the City of El Cajon, the County of San Diego and the California Department of Housing and Community Development (HCD) say on their own websites, so you know what to expect. TLC Manufactured Homes, a family-owned dealer in Poway, can help you work through the details for a specific home and site.

Step one: know who has jurisdiction

Most of the paperwork depends on two questions. Is the home going inside El Cajon city limits or somewhere under the County's permit authority? And is it going into a mobile home park, or onto a private lot?

If you're not sure, call the city or county office for that address before you buy. It's a five-minute call that can save weeks.

Installing a home in an El Cajon mobile home park

Many El Cajon buyers are placing a home in a community. The City of El Cajon's Building Permits page says its Building Safety division conducts inspections of new mobile home installations and accessory structures for mobile homes. Here's what the City lists:

• To apply for an installation permit, submit a permit application, a mobile home installation application, and two copies of the mobile home installation instructions specific to your home.
• For accessory structures, include a permit application, the mobile home accessory structures form, and two copies of your plans.
• The park manager's signature is required on both the installation application and the accessories form.
• Timing: the City says a mobile home installation permit application can typically be approved within three weeks, though workloads vary.
• Inspection: your installation contractor will typically call for the setup inspection.

The City also notes that changes to the interior of a mobile home are permitted through the State Department of Housing and Community Development, not the City. Plan checks are submitted through the City's online Project Assistance Center (PACO).

Who can install the home

California requires a specific license for the people who set your home. HCD's Permits & Inspections page states that a C-47 General Manufactured Housing Contractor license is required for any contractor that installs or prepares for moving any manufactured home. HCD also lists permits as required to make alterations to a manufactured home. Ask whoever is setting your home for their license number before work starts.

Placing a home on a private lot (County rules)

If your lot falls under the County of San Diego's permit authority, the County's Planning & Development Services handout PDS 103 spells out the rules for a manufactured home on a private lot. A few highlights:

Eligible homes. Manufactured homes built on or after June 15, 1976 that carry an insignia of approval are eligible, and the home has to comply with the County Zoning Ordinance (Section 6506).

Permit before installation. The handout says the owner or a licensed contractor must get a building permit from Planning & Development Services before installing the home on a foundation system.

Design details. Roofs need a pitch of at least 2:12, roof overhangs of at least one foot, and the exterior covering must extend to the ground (with an exception for solid concrete or masonry perimeter foundations).

Plans to submit. Expect a plot plan, a foundation plan signed by a California-licensed architect or engineer (or one with current HCD approval), a floor plan and exterior elevations, the manufacturer's installation instructions, skirting details and the state's Form HCD 433(A).

County building permits are handled at Planning & Development Services, 5510 Overland Ave., Suite 110, San Diego, CA 92123.

Setup checklist for El Cajon buyers

Before you commit to a home, gather answers to these:

Fit. Does the home's size work for the space or lot, including setbacks and park rules?

Approvals. If it's going in a park, has management approved the home and signed the City forms?

Installer. Who is setting the home, and do they hold a C-47 license?

Extras. Do you plan any accessory structures? Those need their own permit.

Timing. Have you built permit time into your move-in date?

Homes to look at

TLC Manufactured Homes sells new homes ready for move-in, custom orders and homes already placed in San Diego County communities. Browse homes for sale or the communities page. One popular listing right now is "Spacious New Living in Poway!", a brand-new Cavco Riverside (Fleetwood) home in Poway Royal Estates with 3 bedrooms, 2 baths and 1,491 sq ft, listed at $429,900.

TLC also offers trade-in options if you're upgrading from a current mobile home, and can list and sell a home for you.

Talk to TLC about your El Cajon home

Permits are easier when you start early. Visit TLC Manufactured Homes at 13436 Poway Rd, Poway, CA 92064, call (858) 486-0771, or send a message. TLC lists Dealer License #DL1130990 on its website.