Picture this: you have an accepted offer on a home tucked into Issaquah Dock at Waldo Point Harbor, the kind of place where the living room glass looks straight across Richardson Bay. You call the title company that handled your last purchase in Mill Valley to open escrow. They ask which marina the home sits in, then explain, carefully, that this is not a real estate closing in the way you know it. There is no grant deed. Nothing gets recorded at the Marin County Recorder's Office. Your escrow officer needs a different playbook, and so do you.
That surprise is the whole story of buying on Sausalito's docks. A floating home purchase is legally two transactions stacked into one offer: you are titling a structure the way the state titles a vehicle, and separately negotiating a lease for the water underneath it. Buyers who treat it like a condo purchase with a nicer view tend to find out the hard way, usually during underwriting, that the rules are different at nearly every step. And this year, the lease half of that equation changed for the first time in years.
The Float Is Titled Like a Car. The Berth Is Leased Like an Apartment.
In Sausalito, you buy the floating structure itself. You do not buy the water it sits on. The structure is classified as personal property and transfers through the California Department of Housing and Community Development, the same agency that titles manufactured homes, using a process closer to how the DMV titles a car than how a county recorder handles a deed. There is typically no title insurance in the traditional sense unless your lender arranges its own coverage through a security agreement. Your escrow officer needs to know this going in, because the paperwork trail looks nothing like a standard purchase agreement and grant deed.
The berth is a separate matter entirely. Most Sausalito floating home communities, including Waldo Point Harbor's 282 berths and named docks like Main, South 40, East Pier and West Pier, operate on a model where the marina owns the underlying infrastructure and the homeowner leases the space. Waldo Point Harbor itself notes that its berths have run at full occupancy since the 1970s, and that the harbor office does not handle sales or leasing directly. Those transactions run through private agents and, separately, through the marina's own lease-assignment process, which the marina can decline if a buyer does not meet its requirements. That approval step matters as much as your financing does, and it belongs at the front of your due diligence, not somewhere near the end of escrow.
One more wrinkle worth knowing before you get too deep into paperwork: even though the structure transfers as personal property, Marin's assessor has generally treated floating homes as real property for tax purposes. You end up with a title mechanism built for vehicles and a tax treatment built for houses, layered on top of a leasehold for the water. None of this is disqualifying. It just means the closing timeline and the list of professionals you need looks different from any other Marin purchase, and building that team early saves weeks later.
The Rule That Just Changed
For years, the biggest unknown in a floating home purchase was what happened to your berth rent the moment you closed. That question now has a clearer, though more layered, answer.
Assemblymember Damon Connolly authored AB 754, which Governor Newsom signed in October 2025 as part of a broader package of housing legislation. It took effect January 1, 2026, with its rent provisions reaching back to cover increases starting July 1, 2025. The bill replaces an earlier, broader law, AB 252 from 2022, that applied the same rent structure to Marin, Alameda and Contra Costa counties and was set to expire in 2030. AB 754 carves out a Marin-specific version and extends it to January 1, 2038.
The baseline cap did not change:
"more than 3 percent plus the percentage change in the cost of living, or 5 percent, whichever is lower"
That is the ceiling on how much a marina can raise berth rent in any twelve-month period, and it still applies across Marin's floating home docks. What did change is the treatment of a sale. Under the new law, when a floating home carries an existing lease of ten years or longer, and the sale qualifies as an "in-place transfer," marina management can establish a new initial rental rate for the incoming buyer, subject to conditions that include the buyer certifying the true sale price under penalty of perjury. That is a meaningful shift from a blanket freeze on rent at sale. It means your berth rent is not automatically locked at the seller's rate the moment you take title. Whether it resets, and by how much, depends on the specific lease attached to the home you are buying.
Marin's floating home community pushed for this version deliberately. The Floating Homes Association's Legislative Action Committee, with members including Anna Shimko of Main Dock, held twelve in-person dock meetings across six marinas to build consensus before the bill moved forward, and Marin County administrative analyst Talia Smith helped shepherd it through Sacramento. The reason a Marin-only carve-out exists at all comes down to concentration: Marin is home to roughly 425 floating homes, compared with 42 in Alameda County and 11 in Contra Costa. The vast majority of the Bay Area's floating home stock sits on Richardson Bay, which is exactly why state legislators were willing to write rules specific to these docks rather than apply a one-size-fits-all rent law.
For a buyer, the practical takeaway is simple to state and easy to skip if nobody flags it: before you write an offer, ask whether the berth's current lease runs ten years or longer, ask what the current monthly rent is, and ask whether the marina intends to reset that rate at transfer under AB 754. That single conversation can change your monthly carrying cost by a meaningful margin, and it is a conversation most land-based purchase agreements never require.
Financing Narrows Fast
Once you understand the title and lease structure, the financing picture makes more sense. Government-backed loan programs generally are not built to finance a structure with no recorded deed and a leasehold underneath it, which pushes most floating home buyers toward specialty lenders from the start.
Bank of Marin offers a dedicated floating home loan program, and its terms tell you a lot about how this niche works: loans up to $1,000,000, available only for homes with a concrete hull, decided locally with a credit approval turnaround of 72 hours once a complete package is submitted, backed by more than twenty years of experience underwriting exactly this kind of collateral. If the home you are considering has a different hull construction, or if your purchase price runs well above that ceiling, your lender list gets shorter fast, and you will want to know that before you are three weeks into escrow.
Appraisals take longer here too, simply because comparable sales are limited on a market this small. Lenders that work floating homes regularly tend to use appraisers with specific experience valuing dock properties, and that adds time most land-based purchase timelines do not need to budget for.
Insurance Stacks, It Doesn't Simplify
A standard homeowners policy does not fully cover a floating home, and buyers often discover the gaps one policy at a time. Expect to layer a floating home or houseboat structure policy, potential marine hull coverage if the unit is titled as a vessel rather than a fixed float, and pollution liability that covers fuel or oil exposure, since a leak from a floating structure is treated differently than one from a house on a hillside.
If the property sits in a FEMA Special Flood Hazard Area, a government-backed lender will require flood coverage, and the National Flood Insurance Program carries a standard 30-day waiting period before a new policy takes effect. That waiting period has a way of colliding with a tight closing date if nobody accounts for it early, so get flood quotes moving the same week you open escrow, not the week before you are scheduled to close.
Where the Two Transactions Actually Diverge
| Standard Marin home | Sausalito floating home | |
|---|---|---|
| Title transfer | Grant deed | HCD title transfer, similar to a vehicle title |
| County recording | Recorded at the county recorder | Not recorded the same way |
| Title insurance | Standard | Not standard, varies by lender |
| Land or water rights | Owned outright | Berth leased from the marina, subject to marina approval |
| Rent exposure at sale | None | Possible rent reset under AB 754 if lease is 10+ years |
| Financing | Broad range of conventional and government-backed loans | Narrower list of specialty lenders, hull type matters |
Before You Write an Offer
A short list worth working through with your agent before you go under contract:
- Request the current berth lease and confirm its term. If it runs ten years or longer, ask directly whether the marina intends to reset the rent at transfer under AB 754.
- Get the marina's written confirmation on its lease-assignment approval process. A denial here can unwind a deal even after your financing is locked.
- Confirm the hull material and construction before you approach a lender. Some specialty loan programs, including Bank of Marin's, only finance concrete-hull homes.
- Start insurance quotes early, including a flood-zone check, so a 30-day NFIP waiting period does not collide with your closing date.
- Ask whether the home is a floating home fixed to a dock or a houseboat registered as a vessel. The distinction changes both your insurance and your financing path.
A Few Questions Before You Write an Offer
Do I need title insurance for a floating home? Not in the traditional sense. Because the transfer runs through HCD as a personal property title rather than a recorded deed, standard owner's title insurance generally does not apply. Some lenders arrange their own protection through a security agreement, so ask directly what coverage, if any, your specific lender requires.
Will my berth rent go up right after I buy? It depends on the lease. Under AB 754, a marina can only reset the initial rate for a new owner when the home carries a qualifying ten-year-or-longer lease and the sale meets the law's in-place transfer conditions. Confirm the lease term and ask the marina directly before you write your offer.
Can I use an FHA or VA loan for a Sausalito floating home? Government-backed programs are generally not structured for this kind of collateral, which is why most buyers work with lenders that specialize in floating homes, such as Bank of Marin's dedicated program.
This is a market where the details genuinely change the deal, and where a seller who has lived on the dock for a decade may not know the newest version of the rent rules any better than a first-time buyer does. If you are weighing an offer on a Sausalito floating home, or you are trying to figure out what a specific berth lease means for your monthly costs, Daniel Nebenzahl can walk through the title, financing and insurance specifics with you before you put anything in writing.
