Belvedere Lagoon Sales Run on Two Calendars. Only One Is in the Purchase Agreement.

In mid-July 2026, the city of Belvedere issued a demolition permit for Mallard Pointe, the 22-unit lagoon-side rental complex between City Hall and the water. The permit lets the developer, Thompson Dorfman Partners LLC, begin serving eviction notices on a redevelopment nearly six years in the making. But the wrecking crews cannot move yet. A separate bulkhead permit, covering the walls that hold the lagoon back from the land, is still under city review. Under the conditions attached to the demolition approval, once that bulkhead work starts it has to finish by October 15, because state agencies generally bar in-water construction from October 15 to April 15. Miss that window and the remaining sections wait until spring.

That sequence, a demolition clock ticking against a water-work deadline nobody outside the lagoon thinks about, is not a curiosity specific to one 40-unit project. It is the same sequence that governs a single homeowner replacing a leaning dock or a cracked bulkhead panel on their own lot. Every Belvedere Lagoon transaction carries this second calendar underneath the one your lender and title company are tracking, and it rarely gets discussed until someone is already in escrow.

What Actually Sits Beneath the Water

The 66-acre lagoon was carved out in the early 1940s and is now ringed by roughly 260 private residences and duplexes, plus the association boatyard. It has no public access. The water itself, and the land beneath it, belongs to the Belvedere Lagoon Property Owners Association, a private non-profit corporation, not a homeowners association in the conventional sense. Membership is required of lagoon shoreline homeowners specifically, which is part of why the association's own rolls list about 235 members even though roughly 260 properties sit around the perimeter.

That distinction matters more than it sounds. A typical HOA governs shared roads, landscaping, or a clubhouse. BLPOA answers to the State of California for water quality that flows to and from Richardson Bay, and its board coordinates with the Bay Conservation and Development Commission, the U.S. Army Corps of Engineers, NOAA, California Wildlife, and the regional and state water boards. A dock repair on this lagoon is not a landscaping request. It is a regulated activity on a body of water multiple agencies have jurisdiction over.

Current dues run $570 per quarter, with no increase for 2026. The bylaws allow the board to raise dues or levy special assessments with a two-thirds vote of members, and in 2025 members approved a one-time $600 assessment tied to bulkhead repair and maintenance equipment. Those dues fund boathouse and dock upkeep, the inflow and outflow valve on San Rafael Avenue, weed removal, a full-time maintenance crew, and rising insurance costs the association says have been climbing 8 to 10 percent a year.

The Calendar That Actually Runs the Water Work

BLPOA manages the lagoon's water level on a seasonal split: roughly April 1 through October 31 for recreational use, and roughly November 1 through March 31 for flood control. The association tells members to inspect their dock, bulkhead, and shore-facing retaining walls when the water runs low, and its own guidance is direct.

"A sound bulkhead is important to preserve the health of the lagoon and your property."

Once land erodes from a shoreline, the State Water Board does not allow the owner to simply backfill it. Any sanding, staining, or dock and bulkhead work near the water requires contacting BLPOA Operations first. This is the same regulatory rhythm now playing out at Mallard Pointe, where the bulkhead there will be removed and replaced in small interlocking sections rather than all at once, with straw wattles and erosion controls required to keep sediment out of the water during the work.

For an individual seller or buyer, the practical version of this story is simple. If a bulkhead or dock issue surfaces during an inspection in September, the contractor is not working against a typical construction schedule. They are working against the same October 15 in-water deadline the city just wrote into a developer's permit. Discover the problem in October instead of August, and the repair may not be able to start until the following spring, whether that affects the sale price, a repair credit, or how a new owner budgets their first winter on the water.

Before the Sign Goes Up: What Sellers Set in Motion

BLPOA asks sellers to notify the association directly when a lagoon home is listed, so it can issue two things: a disclosure packet for prospective buyers and the documents that need to be signed in escrow. A seller who waits until an accepted offer to make that call is compressing a process that works better with lead time. Before listing, it is worth confirming:

1. Current dues status and whether any special assessment is pending or recently passed
2. The physical condition of the dock, bulkhead, and shore-facing retaining walls, ideally inspected while water is low
3. Whether any planned or in-progress water-adjacent work has been logged with BLPOA Operations, since unpermitted work near the lagoon can complicate a sale
4. Whether the disclosure packet and escrow paperwork have been requested from BLPOA with enough lead time to avoid a last-minute scramble

Before Contingencies Come Off: What Buyers Confirm

Because BLPOA membership does not automatically pass with the deed, a buyer's closing checklist needs one item a standard purchase agreement will not prompt: a new membership agreement with the association, executed and approved before or at close. Dues are the new owner's responsibility from the date of purchase forward, not prorated the way property taxes are. Beyond membership itself, a buyer's due diligence should include the same physical questions a seller should already be answering: the current state of the bulkhead and dock, any recent or pending special assessments, and whether exterior or water-adjacent work on the property has city and BLPOA sign-off on file.

None of this changes what makes the lagoon desirable. Private water access inside a 66-acre, fully enclosed lagoon is not a feature most Marin properties can offer at any price. It does mean that the paperwork accompanying that access looks less like a standard HOA disclosure and more like a second, quieter escrow running in parallel, one with its own membership contract, its own dues structure, and its own regulatory calendar that does not bend for a closing date.

FAQ

Does BLPOA membership transfer automatically when a lagoon home sells? No. Membership ends at sale, and the new owner completes a separate membership agreement that is typically handled during escrow.

Are BLPOA dues prorated at closing the way property taxes are? The association's own guidance is that new members are responsible for dues from the date of purchase forward, so buyers should confirm proration terms directly with BLPOA rather than assuming standard tax-style proration applies.

Can bulkhead or dock repairs happen any time of year? Not typically. In-water work is generally restricted from around October 15 to April 15 under state rules, the same window now shaping the Mallard Pointe bulkhead schedule, so timing a repair around this calendar matters as much as timing it around escrow.

Who do I contact before starting work near the lagoon? BLPOA Operations should be contacted before any sanding, staining, dock repair, or bulkhead work near the water, regardless of whether the work requires a city permit.

If you are weighing a purchase or a sale on the Belvedere Lagoon, the details above are the kind of thing worth walking through before an offer goes in either direction, not after. First California Realty works this stretch of Marin closely enough to know where the paperwork gets complicated. Let's connect, starting with a confidential home valuation.