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Homes on Land

Placing a manufactured home on private land in San Diego County.

Placing a manufactured home on your own land in San Diego County requires more than just buying the home. You need the right zoning, a compliant foundation, permits from the county or city, and utility connections. In rural unincorporated areas, that means a well and septic system if none exist. County Zoning Ordinance Section 6506 sets the physical standards the home must meet: permanent foundation, conventional exterior siding, roof pitch of at least 2 inches per foot, and eave overhangs of at least 1 foot.

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Rural San Diego County parcel with a manufactured home on a graded pad surrounded by native landscaping

What this covers

  • Walk you through County Zoning Ordinance Section 6506 requirements for manufactured home placement
  • Help you understand what zoning designations allow residential manufactured home placement
  • Explain the permit process for unincorporated San Diego County and key city jurisdictions
  • Help you understand what a site assessment needs to cover: soils, slope, utilities, access
  • Explain well and septic requirements for rural parcels without existing utility service
  • Walk you through the HCD Form 433A process for converting the home to real property
  • Connect you with vetted contractors and engineers who work on manufactured home placements in San Diego County
Homes on Land guide illustration for San Diego County manufactured home buyers

When this applies to you

  • You own a parcel and want to know if a manufactured home can legally go on it
  • You're buying land specifically to place a manufactured home
  • You're in an unincorporated rural area of San Diego County with no existing utilities
  • You want to understand what permits and inspections are required before you buy the home
  • You've been told a manufactured home can't go on your land and want to understand why

What buyers ask about Homes on Land

What does San Diego County Zoning Ordinance Section 6506 require?

Section 6506 sets standards for manufactured homes placed on private lots in unincorporated San Diego County. The home must be post-June 15, 1976 with a HUD certification label, placed on a permanent foundation, finished with conventional exterior siding rather than bare metal, have a roof pitch of at least 2 inches per foot, and have eave overhangs of at least 1 foot. These requirements bring the appearance of a manufactured home in line with site-built residential standards in the county.

What foundation type is required?

HUD Permanent Foundation Guidelines require that the foundation be engineered to resist the loads of the home and site conditions, be built of durable materials, and be attached to the home with approved anchoring systems. In San Diego County, a concrete perimeter foundation is the most common approach. An engineered foundation plan is typically required, and the design may need to address expansive soils or seismic zone requirements depending on the parcel.

What if my land does not have water or sewer service?

In rural areas of San Diego County, properties without public water and sewer service need a well and an on-site septic system. A well permit goes through the County Department of Environmental Health. Septic design and permitting also go through DEH and require a percolation test to determine soil absorption. Well and septic installation together commonly costs $20k to $60k or more depending on depth, soil conditions, and system size. Budget for this before you buy the land.

How does the permit process work for unincorporated San Diego County?

You submit applications to San Diego County Department of Planning and Development Services. A standard manufactured home placement involves a building permit, a grading permit if significant earthwork is needed, and potentially a discretionary review if the parcel is in a sensitive area. The county also requires a set of approved plans covering the foundation, utility connections, and the home specifications. Review times vary but typically run 2 to 6 months for a straightforward project.

Can I use a manufactured home as the only dwelling on agricultural land?

In some agricultural zones in unincorporated San Diego County, a manufactured home can serve as the primary residence if it meets all of the Section 6506 standards and the parcel meets minimum size requirements. The specific allowances depend on the zone designation. Some agricultural zones require a farm dwelling use permit. Check with San Diego County Planning and Development Services before purchasing agricultural land for this purpose.

Coverage area

Where we help buyers in San Diego County

We connect buyers across every city and community in San Diego County. Pick your city for local market notes and community-specific details.

Central Homes on Land in San Diego San Diego is both a park-living hub and a private-land placement city. Beach communities and urban neighborhoods lean toward ADU conversions on owned lots. Inland communities like Encanto and Skyline have older mobile-home parks with affordable spaces. HCD 433A filings and HUD post-1976 certification apply to all private-lot placements.
North Coastal Homes on Land in Oceanside Oceanside has one of the largest manufactured-home and mobile-home park inventories in North San Diego County. East Oceanside and the Rancho Del Oro area have active all-age and 55-plus parks with reasonable space rents. Military families stationed at Camp Pendleton frequently consider park homes as an affordable housing option near the base.
North Coastal Homes on Land in Carlsbad Carlsbad has established 55-plus manufactured-home communities particularly inland near Calavera Hills and the eastern corridors. Buyers appreciate the city's amenities and North County coastal access at a fraction of single-family home costs. Private-lot placement on larger residential lots near Palomar Airport Road is possible for buyers who own the land.
North County Inland Homes on Land in Escondido Escondido is a manufactured-home hub for North County Inland. It has more mobile-home parks and 55-plus manufactured-home communities than most cities in the region. Buyers get inland San Diego proximity at lower land and space costs. Private-lot placements happen in the rural eastern edges near Valley Center Road and Felicita.
East County Homes on Land in El Cajon El Cajon has the highest concentration of mobile-home parks in East County. Parks range from all-age family communities to 55-plus retirement communities. Land costs are among the lowest in the county for private placements. Buyers looking for affordable East San Diego County living with quick freeway access frequently land here.
South County Homes on Land in Chula Vista Chula Vista has one of the largest manufactured-home and mobile-home park populations in San Diego County. Parks are spread across both western and eastern Chula Vista. The city draws a large bilingual buyer base, and newer Otay Ranch areas have larger lots suited to private placements. Navy families stationed nearby consider park homes as an affordable housing alternative.
Coastal Homes on Land in La Jolla La Jolla is premium coastal land where manufactured-home placement is not a realistic path for most buyers. The area attracts high-end custom modular buyers who want architectural design with faster delivery than site-built. ADU modular placements on large La Jolla Farms or La Jolla Shores lots are the most common use case we see here.
Central Homes on Land in Scripps Ranch Scripps Ranch is a suburban master-plan community with limited manufactured-home park inventory. Larger lots in the community allow ADU manufactured-home placements for multi-generational families. AB 1033 makes selling a manufactured ADU separately legally possible. Buyers interested in park living look further east toward Santee or south toward El Cajon for more park options.
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What should you know about Homes on Land?

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Manufactured Home ADUs in San Diego: Rules, Costs, and AB 1033

Can you use a manufactured home as an ADU in San Diego County? Yes. Here's what the 2026 rules require, what AB 1033 changes, and what it costs.

Real feedback

What buyers say about working with us

Examples of the kind of guidance we work to give every buyer. Verified reviews from real buyers will live on our Google Business Profile when they're earned.

We had five acres of family land sitting empty for years. Land & Home SD walked us through every step: the dealer search, HCD permits, foundation requirements, and Section 6506 compliance. We closed on a three-bedroom home in four months. Never could have navigated that alone.

Land and Home Placement Ramona

We wanted to add a unit for my mother-in-law without a full construction project. Land & Home connected us with a dealer who had the right floor plan, explained the AB 1033 rules, and confirmed the permit path before we spent a dollar. The ADU is on the foundation and she moved in right on schedule.

Manufactured Home ADU Vista

I'd been renting for three years after my husband passed. The consultant helped me understand space-rent leases versus land-owned parks, and found me a well-maintained 55-plus community two miles from my daughter. I own my home now. That matters more than I can say.

55+ Park Purchase El Cajon
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