A loan officer we know in Marin has a standard question she asks the moment a Sausalito waterfront file crosses her desk: "Are we financing land or a lease?" It sounds like a formality. It isn't. In parts of Sausalito, the house and the ground under it are two separate transactions, and getting that distinction wrong can stall an appraisal or kill financing outright. Six miles away in Tiburon, the question never comes up. You buy land, full stop.

That single difference in how ownership works is the real story hiding underneath this year's most-repeated Marin County statistic: Sausalito prices are down, Tiburon prices are up. Anyone comparing the two towns on price alone is missing the part that actually changes what you're buying.

The Same Six Miles, Two Different Headlines

Over the three months ending in May 2026, homes in Sausalito sold for a median of $1.9 million, down 8.0 percent from the same period a year earlier, with price per square foot down 9.07 percent to $962. Over the three months ending in June 2026, Tiburon's median sale price was $3.4 million, up 2.2 percent year over year, with price per square foot up a striking 39.8 percent to $1,280.

Laid side by side, the pattern looks simple: one town cooling, one heating up.

Look closer and the pattern stops making sense as a simple story about demand. Sausalito homes are selling ten days faster than a year ago even as the median price falls. Tiburon's price per square foot jumped nearly 40 percent while its pace of sale barely moved. If Tiburon buyers were suddenly paying that much more for the same houses, you'd expect homes to sit longer while the market adjusted. They didn't. Something other than value is doing the work in both towns.

A Falling Median Isn't the Same as a Falling Market

The mechanism is mix. A median price only tells you what the middle house sold for, not what kind of house that was. When the composition of what's selling shifts, the median moves even if no individual home lost or gained a dollar of value.

In Sausalito, faster sales alongside a lower median suggests the entry-level and mid-tier segment (attached condominiums, smaller waterfront homes closer to downtown, floating homes) is moving quickly and pulling the median down, while the large hillside view estates that anchor the top of the market take longer to find a buyer and closed in smaller numbers this spring. Fewer big-ticket closings means a lower midpoint, even with no discount on any single property.

Tiburon shows the mirror image. Sales volume rose to 43 homes in June 2026 from 31 a year earlier, and the price per square foot spiked well beyond what a stable market typically produces in twelve months. That combination points to more large, high-value properties changing hands rather than the same house type getting more expensive across the board. One data point supports this directly: in Belvedere Tiburon's Lagoon submarket, the median sale price over the three months ending in January 2026 was $3.9 million, up 13.9 percent year over year. A cluster of Lagoon sales, or homes with that kind of premium waterfront positioning, is enough to lift Tiburon's overall figures without every seller in town seeing that kind of appreciation.

Neither town's number is wrong. Both are answering a narrower question than most people think they're asking.

The Question Neither Median Answers: What Do You Actually Own?

Here is where the two towns stop being comparable on price at all.

In Tiburon and Belvedere, a waterfront purchase means what it means almost everywhere: you own the parcel, the structure, and everything between them. Financing, appraisal, and resale follow familiar rules because the underlying asset is conventional.

Sausalito's waterfront market is not one market. It splits into hillside view estates and downtown properties, both land-owned, and a third category that behaves nothing like the first two: the floating home community at Waldo Point Harbor, at the northern end of Richardson Bay. Waldo Point Harbor has 282 privately owned berths, and every one of them has been occupied since the 1970s. Buying there means purchasing the floating structure itself while separately leasing the berth beneath it from the harbor. The two aren't bundled the way a house and lot are.

That structure creates real friction points a buyer needs to plan for before writing an offer:

• Financing requires a specialized lender. Conventional mortgage underwriting assumes you're securing a loan against land. A floating home loan is secured against a structure with a lease, and not every lender does this kind of paper.
• The berth lease is a separate, ongoing cost. Monthly berth fees are paid to the harbor independent of any mortgage payment, and lease terms (length, renewal, what happens on resale) vary and are worth reading in full before you're in contract.
• Rent increases on the berth are regulated but not frozen. California's AB 754 ties berth rent increases to CPI-based limits rather than leaving them open-ended, which caps the risk but doesn't eliminate it.
• Appraisal comps are thinner. Because floating homes are a small, tightly held segment, finding recent comparable sales for an appraisal can take longer than it would for a standard hillside listing.
• Infrastructure is a shared concern. Waldo Point Harbor has been working through seawall and dock renovations, the kind of capital project that affects the whole harbor community rather than a single owner, and it's worth understanding where that work stands before you commit.

None of this makes a floating home a worse purchase. For the right buyer, waking up on Richardson Bay with immediate walkable access to Sausalito's shops and restaurants along Bridgeway is exactly the lifestyle they're after. But it is a different asset class wearing the same "Sausalito waterfront" label as a hillside estate three streets away, and the median price doesn't distinguish between them.

What This Means If You're Comparing the Two Towns Right Now

If Sausalito and Tiburon are both on your list, the median price gap tells you less than it appears to. A more useful comparison starts with three questions:

• What type of property produced this year's median? In Sausalito, ask whether recent comparable sales were hillside estates, downtown waterfront homes, or floating homes at Waldo Point Harbor. Each behaves differently on financing and resale.
• In Tiburon, is the property inside a premium micro-market like The Lagoon, or in a less concentrated part of town? The county-wide Tiburon number blends both, and the gap between them has been wide this year.
• If land ownership matters to your long-term plans, confirm it in writing before you fall in love with a property. A berth lease and a deed are not interchangeable, and the difference shows up at refinance, at resale, and at estate planning, not just at closing.

The towns aren't competing on the same axis. Tiburon sells land-based certainty at a price that reflects its Lagoon and hillside premiums. Sausalito sells a wider range of ownership structures under one town name, from conventional hillside estates to a floating-home community with its own financing rules. Buyers who understand which one they're actually evaluating make better offers and avoid surprises in escrow.

Common Questions

Is Sausalito cheaper than Tiburon right now? On paper, yes: Sausalito's median sale price was $1.9 million over the three months ending in May 2026 compared to Tiburon's $3.4 million over the three months ending in June 2026. But the gap partly reflects what sold in each town during that window rather than a uniform price difference between comparable homes.

Do floating homes at Waldo Point Harbor appreciate the same way as land-based homes? They're assessed and taxed as real property, but their financing, comps, and berth-lease terms are different enough from hillside or downtown homes that they should be evaluated on their own, not folded into general Sausalito price trends.

Why did Tiburon's price per square foot jump nearly 40 percent in a year? The size of that jump, without a matching increase in days on market, points to a shift toward larger or more premium properties selling (including strong activity in Belvedere Tiburon's Lagoon submarket) rather than a broad repricing of every home in town.

If you're weighing Sausalito against Tiburon, or trying to figure out which segment of either town actually fits your budget and your plans, that's exactly the kind of comparison Michelle Harris and her team walk clients through every week. Request a Private Market Review and get a straight read on what your number actually buys in each town before you write an offer.