A buyer moving from a conventional Marin listing assumes any qualified lender can write a mortgage on any home that meets appraisal. On the floating home docks off Bridgeway, that assumption breaks down in a single phone call. Ask five banks about financing a Sausalito floating home and four will say no before you finish the sentence. The fifth will ask which dock, because the answer changes what happens next.
This is not a story about a niche property being hard to finance in some general sense. It is a story about a specific number. As of 2026, the small handful of lenders willing to underwrite these loans caps individual financing around $1,000,000. That ceiling does not just make borrowing harder. It quietly splits roughly 425 floating homes across Marin County into two separate markets that behave nothing alike, and almost nobody touring these docks for the first time knows where the line falls until they are already in escrow.
Why Conventional Lenders Won't Touch a Berth Lease
The mismatch starts with what you are actually buying. A floating home is not built on a foundation and it does not sit on land you can pledge as collateral. You own the structure and lease the berth beneath it from a marina operator, sometimes for a term of ten years or longer. Fannie Mae and the retail banks that dominate ordinary home lending want a permanent foundation and clear title to the ground underneath. A leased berth on Richardson Bay offers neither, so the standard conforming mortgage most buyers assume they will use simply does not apply.
That leaves two paths. If a home is classified and assessed as real property, which is common in Marin, some conventional-adjacent options open up, though they still require a lender comfortable underwriting a leasehold berth instead of owned land. If the home is classified as personal property or a vessel, financing runs through chattel or marine loans instead, which require a certified marine survey before any lender will move forward. A SAMS or NAMS certified surveyor checks the flotation system, whether concrete barge, foam-filled steel, or in rare older homes plywood, along with bilge systems, through-hulls, and electrical wiring. According to InterNACHI's guidance on inspecting floating homes, concrete barges built before the late 1990s used uncoated rebar, which limited their service life to roughly 40 years before corrosion became a structural concern, a detail that matters more on older docks than newer construction.
Reporting from The San Francisco Standard in 2024 named the two institutions actually active in this lending: Bank of Marin and Cooperative Center Federal Credit Union. A longtime Sausalito agent quoted in that piece put it plainly, both lenders are careful about what they underwrite. Neither sells loans to Fannie Mae or Freddie Mac. Both hold them on their own books, which is the only reason floating home lending exists in this market at all.
The Ceiling That Splits the Market in Two
Here is where the number matters. Both lenders cap individual floating home loans around $1,000,000. Below that line, a buyer with reasonable credit and a down payment can shop two real lenders and expect a real answer. Above it, the buyer pool narrows to cash and private portfolio financing, full stop.
Sales reported in 2024 illustrate how wide that spread can run. A 300 square foot home on Main Dock listed at $425,000 sits at one end. A 1,728 square foot four-deck home at the end of Gate 6½ listed at $1,795,000. Larger architect-designed homes on Issaquah Dock with deep water access and panoramic views have reached past $2,800,000 in industry reporting since. Everything from the low $500,000s through roughly $1,000,000, concentrated heavily on entry-level docks like South Forty, sits inside the financeable tier where bank-qualified buyers can compete on ordinary terms. Everything above it competes in a much thinner pool.
This is not a subtle distinction. A seller listing a home at $1.4 million is not competing against every buyer who can afford the payment. They are competing against buyers who can either write a check or already have a relationship with a portfolio lender willing to go outside the two-lender norm. That changes negotiating leverage, timeline expectations, and how a listing should be priced and marketed from the start, and it is the kind of detail a buyer needs before falling in love with a dock they cannot actually finance.
The Permit Gap Nobody Puts in the Listing
A second structural fact rarely makes it into a buyer's due diligence, and it should. Bay Conservation and Development Commission permits for the three largest floating home marinas in Sausalito lapsed in the early 1990s. According to the Floating Homes Association's own historical account, only Waldo Point Harbor has successfully renewed its BCDC permit since then.
| Marina | Docks | Approximate Homes | BCDC Permit Status |
|---|---|---|---|
| Waldo Point Harbor | South Forty, Main, Liberty, Issaquah, A Dock | 282 berths | Renewed |
| Kappas Marina | East Pier, West Pier, Gate 6½ | About 119 | Pending renewal |
| Yellow Ferry Harbor | Single dock | Not specified | Pending renewal |
A pending permit does not mean a marina is at risk of closing. Sausalito's floating home community has operated this way for decades. But it does mean capital improvements, dock alterations, and long-term infrastructure decisions at Kappas and Yellow Ferry Harbor move through a different regulatory posture than at Waldo Point Harbor. If you are buying into a dock outside Waldo Point Harbor, ask the marina manager directly about permit status and any pending capital projects before you write an offer. It is a fair question and one that a seasoned local surveyor or attorney should be helping you ask.
What AB 754 Actually Changes for a Buyer
The most recent shift in this market is not physical, it is legislative, and it lands squarely on anyone buying in the next few years. Governor Newsom signed AB 754 on October 10, 2025, a Marin-specific amendment to the state's Floating Home Residency Law. The bill's sponsor, the Marin County Board of Supervisors, described it as the product of more than two years of negotiation between the Floating Homes Association and Marin's marina owners, and the outreach behind it was unusually thorough.
The LAC held 12 in-person dock meetings across all six marinas and distributed an informational memo explaining the proposal, following with a formal opinion survey of all floating home residents. The results were overwhelmingly supportive: more than 400 floating home residents participated, a 67% response rate, and 93% voted in favor.
The law replaces a flat 5% annual rent cap with a CPI-based formula, a floor of 3% and a ceiling of 7.5%, with any inflation reading above 5% cut in half before it applies. It applies to rent increases occurring on or after July 1, 2025, and takes full legal effect January 1, 2026. For a buyer, the practical piece is the in-place transfer provision. When a floating home changes hands and the prior lease ran ten years or longer, the marina can reset the berth rent at sale, but the increase is capped at whichever is lower: 25% above the prior rent, or 0.15% of the home's actual sale price. That means the price you agree to pay can directly affect the berth rent the marina charges you the day after closing, which is a negotiating detail worth raising with the seller's agent before you finalize an offer, not after.
What to Confirm Before You Write an Offer
- Get the exact current monthly berth fee in writing, along with the lease's remaining term and whether it qualifies as a 10-year-or-longer lease under AB 754
- Ask whether a rent reset applies at sale, and if so, request the calculation the marina will use based on your offer price
- Confirm the marina's BCDC permit status directly with the marina manager, particularly outside Waldo Point Harbor
- Line up a certified marine surveyor early, since both the survey and its findings will shape which lenders will even consider the file
- Call Bank of Marin and any other portfolio lender active in this niche before you fall in love with a home priced above $1,000,000, so you know your actual financing path going in
A Few Questions Worth Answering Before You Tour
Can I get a HELOC on a floating home? It is possible but uncommon. Because most floating homes are classified as personal property rather than real property, conventional banks typically will not lend against them through a home equity line. Access to equity more often comes through a cash-out refinance or a portfolio lender willing to offer that product to floating home clients specifically.
Is a Sausalito floating home taxed as real property or personal property? It depends on the individual property and how it is affixed to its berth. Confirm the exact classification for any home you are considering directly with the Marin County Assessor's office, since it affects both your tax treatment and which lenders will even look at the file.
What does a marine survey actually check? A certified surveyor inspects the flotation system, whether concrete barge, foam-filled steel, or an older plywood float, along with bilge systems, through-hulls, electrical wiring, and general structural condition. Lenders use the results to decide whether the home meets their underwriting standards, so this is not an optional step you can skip to save time.
Buying on the water in Sausalito rewards buyers who ask the right questions in the right order, before an offer is written rather than during a shaky escrow. If you are weighing a floating home purchase, or trying to figure out which dock actually fits your budget once financing reality sets in, Julie Upton can walk through the specifics with you. Let's Connect.
