If you've ever applied for a mortgage on a floating home at a conventional bank, you've encountered the confusion, the delays, and ultimately the decline. Here's exactly why conventional banks can't fund these loans — and what that means for you.
The Root Cause: Secondary Market Standards
The vast majority of conventional mortgages in the United States are originated by banks and lenders that immediately sell the loans to Fannie Mae, Freddie Mac, or Ginnie Mae. These government-sponsored entities buy loans from lenders, package them into mortgage-backed securities, and sell those securities to investors.
This system works efficiently for standard real estate — land with a house on it. But it requires that every loan meet precise underwriting standards defined by Fannie and Freddie. A floating home fails to meet those standards on multiple dimensions simultaneously, making it ineligible for the secondary market and therefore ineligible for the loan products those banks are set up to originate.
Why Floating Homes Fail Fannie/Freddie Guidelines
Not Real Property
Fannie Mae and Freddie Mac require loans to be secured by real property — land with permanent improvements affixed to it. A floating home is personal property (a vessel). It sits on leased water, not owned land. The lender cannot take a conventional deed of trust against real property because there is no real property. Game over for the conforming loan.
No Permanent Foundation
Even if a lender tried to stretch the definition, floating homes fail the foundation requirement. Conventional mortgage programs require a permanent foundation — concrete, masonry, or equivalent — connecting the structure to the land beneath it. A floating home sits on water, attached to a dock, not a foundation.
No Land Title
Conventional mortgages include the land as part of the collateral. With a floating home, the buyer doesn't own the land (water) beneath the home — they lease a slip. The lender cannot take a security interest in land that isn't being transferred.
Non-Standard Valuation
Real estate appraisals use comparable sales of real property. A floating home is valued using marine appraisal methods (NADA guides, comparable marine sales). Most conventional lenders don't have the infrastructure to process a marine appraisal, and their underwriting systems can't handle it.
The Automated Underwriting Problem
Modern bank mortgage applications run through automated underwriting systems (Desktop Underwriter or Loan Product Advisor). These systems are built around real property loans. A floating home application will either be rejected immediately by the system or fail at a critical check before a human underwriter ever sees it. This isn't a matter of a sympathetic loan officer finding a workaround — the infrastructure simply isn't designed for this loan type.
What Happens When You Apply Anyway
When buyers unfamiliar with the market apply for a conventional mortgage on a floating home, one of three things usually happens:
- The loan officer takes the application, then declines weeks later after wasting your time and damaging your credit inquiry count.
- The loan officer immediately flags the property type and tells you they can't do it — at least saving you the time.
- The loan officer doesn't know what a floating home is and tries to process it as a conventional loan until it eventually falls apart in underwriting — sometimes after you're already in contract.
None of these outcomes is good. The right move is to start with a broker who specializes in floating home loans, not to test whether a conventional bank will figure it out.
Who Can Actually Fund This Loan
Specialty marine lenders (who use vessel-specific underwriting), portfolio lenders (who keep loans on their own books and aren't constrained by secondary market guidelines), and private lenders (who set their own terms) can all fund floating home purchases. See our lender comparison guide for a complete breakdown.
Paul Bergeron has active broker relationships with all three categories and has been placing floating home loans in Sausalito for 40 years. Call Paul at (415) 332-7539 to start a conversation about your specific situation.
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Paul Bergeron is the only Sausalito broker who handles both the home and the loan. Call (415) 332-7539 or reach out below.