Permanent Foundation Systems for Manufactured Homes

If you've ever tried to refinance or sell a manufactured home in California, you've probably run into the phrase "permanent foundation." It can sound intimidating, but the idea is simple: your home needs to be anchored to the ground in a way an engineer can certify as permanent and earthquake-resistant. Here's what that actually means — and why it matters for your wallet.

What is a permanent foundation?

Most manufactured homes start life resting on stacked piers and pads — adequate to hold the home up, but not engineered or permanently attached to the land. A permanent foundation system upgrades that setup with engineered components: poured footings, steel or approved piers, and a bracing system that ties the home to the ground so it can resist wind and seismic forces.

In California, this work is documented so the home can be recognized as real property rather than a vehicle. That paperwork is the part most homeowners actually care about, because it's what unlocks financing.

Why lenders and buyers require one

Conventional, FHA, VA, and most refinance loans will not fund a manufactured home unless it sits on a qualifying permanent foundation. Without it, your buyer pool shrinks to cash offers and specialty lenders — usually at a lower price. With it, your home competes much more like a traditional house.

The California paperwork (ETO / 433A)

California uses a recorded form (commonly referred to in the 433A / ETO process) that certifies the home is installed on an approved foundation and converted to real property. A licensed contractor installs the system to code, and an engineer's certification confirms it meets requirements. Once recorded, lenders and title companies have the documentation they need.

We handle this process regularly, so we can walk you through exactly what your specific lender or escrow is asking for — and make sure the work and the paperwork line up.

How long does it take?

For a typical single- or double-wide, the physical work is often completed in a matter of days, with engineering and recording handled in parallel. The timeline usually depends more on inspections and paperwork than on the construction itself. If you're on a tight escrow, tell us — we've delivered foundations in a hurry before, and our customers will vouch for it.

What it costs

Cost depends on your home's size, current setup, soil, and site access. Rather than guess, we give you a free, honest estimate after seeing the home — and we offer financing through Hearth if you'd rather spread the cost out. No equity required, and checking your options won't affect your credit.