Manufactured homes in San Diego County can cost as little as $100,000 or well over $500,000, depending on where you put it, whether you own the land, and how much site work the property needs. The question “how much does a manufactured home cost?” doesn’t have a single answer, but it does have an honest one. Here’s the real breakdown.

What you’re actually paying for

A manufactured home price has two separate buckets. The home itself and everything it takes to put the home on a piece of land. Miss the second bucket and the project will cost far more than you expected.

The home itself covers the structure as it leaves the factory. This includes framing, roofing, siding, kitchen, bathrooms, flooring, and fixtures. It does not include delivery, setup, or any site preparation.

Site costs cover delivery, permits, foundation, utility connections, and any grading or driveway work the property needs. On private land in San Diego County, site costs alone commonly run $50,000 to $150,000. Rural properties that need a new well and septic system are at the top of that range or beyond.

Keep both buckets in mind for every number below.

Park homes: existing vs. new

Buying an existing home in a park

This is the most affordable path into manufactured homeownership in San Diego County. Existing homes in land-lease parks (where you own the home but lease the lot) typically run $100,000 to $300,000 depending on age, size, condition, and park location.

Parks near the coast in Carlsbad, Oceanside, or Chula Vista carry higher prices than inland parks in El Cajon or Santee. Space rent matters too. A $150,000 home in a park charging $1,200 per month in space rent has a very different total cost of ownership than one at $700 per month. Factor that in before you compare prices.

Single-wide homes (one 14-16 ft wide section) sit at the lower end. Double-wides (two sections joined on-site) are larger and price higher. Age matters: a post-2000 home in good condition holds value and qualifies for more financing options than a 1980s home.

New manufactured home in a park

New homes placed in a park run roughly $130,000 to $250,000 for the home purchase, delivery, and setup within an existing park. This varies a lot by manufacturer, floor plan, and finishes. Base models start lower; upgraded kitchens, vaulted ceilings, and premium siding push prices up.

Check whether the park allows new placements. Many established San Diego parks are full or have waitlists.

Private land: the bigger investment

Putting a manufactured home on land you own (or plan to buy) is a different category of project. The home itself may cost less than a site-built house, but the land and site work close much of the gap.

Home cost on private land

New manufactured homes placed on private land and built to HUD code typically run $100,000 to $300,000 for the structure. Floor plan size, number of sections, and upgrade level determine where you land in that range. A basic 1,200 sq ft single-section home is at the low end. A 2,400 sq ft double-wide with upgraded finishes is toward the top.

Site work and installation costs

This is where private-land projects surprise people. In San Diego County, site work commonly adds $50,000 to $150,000 on top of the home price. What goes into that:

  • Permanent foundation: required for any new manufactured home placed on private land (HCD 433A form). A standard perimeter foundation or engineered system runs $15,000 to $40,000.
  • Permits: County PDS (Planning and Development Services) permits for foundation, grading, and utility work. Budget $5,000 to $15,000 for the permit process.
  • Utilities: connecting water, sewer or septic, and electrical. Urban infill lots with existing connections cost less. Rural parcels needing a new well and septic can add $30,000 to $70,000 or more.
  • Grading and pad preparation: flattening and compacting the pad. Costs vary widely by terrain.
  • Delivery and setup: transporting sections and crane or set crew to place them. $3,000 to $10,000 is typical within the county.

After site work, a private-land manufactured home project in San Diego County realistically lands in the $200,000 to $450,000 range all-in. That’s still usually below what comparable site-built construction costs in the county, but it’s not cheap.

Land cost

If you don’t already own land, factor that separately. Raw land in San Diego County varies enormously. Unentitled rural parcels in the backcountry start in the $50,000 to $200,000 range. Parcels with existing utilities and zoning that allows manufactured homes in more developed areas cost more. Zoning research is critical before you buy land.

ADUs on private land

Using a manufactured home as an ADU on an existing lot is an increasingly common strategy in San Diego County. Costs here are similar to the private-land numbers above, often running $180,000 to $300,000 all-in for a properly permitted and installed unit, depending on size and site complexity.

AB 1033 (San Diego County adopted it effective April 4, 2026) now allows ADUs in unincorporated areas to be sold separately as condominiums, which changes the economics for some buyers and investors. Homes 750 sq ft and under are exempt from most impact fees, saving $10,000 to $30,000. See our full manufactured home ADU guide for how these rules apply.

What drives the final price

Five things move the number more than anything else:

1. Land ownership. Owning land dramatically increases total investment but builds equity differently than a park lease.

2. Site complexity. A flat urban infill lot with existing utilities is far cheaper to develop than a rural hillside parcel.

3. New vs. existing. New homes cost more than comparable existing homes, but come with warranties and more financing options.

4. Size and finishes. A 900 sq ft single-wide and a 2,400 sq ft double-wide with a premium kitchen are not comparable products.

5. Financing structure. Homes not permanently affixed (park leases, some installations) require chattel loans at higher rates than conventional mortgages. Permanently installed homes on owned land can often qualify for traditional financing.

A note on what these homes are

A manufactured home built to HUD code with a steel chassis is different from a modular home (built to state and local codes, no chassis, placed on a permanent foundation from the start). If you’ve heard both terms and aren’t sure which applies to your situation, the manufactured vs. modular comparison on our site explains the practical differences.

Get a real number for your situation

The ranges above are honest, but your specific project will have its own numbers. Land type, lot prep, utility situation, home size, and financing all shape the final cost.

Land & Home SD helps buyers in San Diego County understand the full picture before they commit to anything. Call (858) 925-5546 or visit our manufactured home cost guide to start a free conversation. No sales pressure, no obligation.