Two homes go up for sale the same week on adjoining Foster City streets. Same lagoon. Same 2,000 square feet. Same year built. One lists for $2.3 million. The other lists for $1.6 million. The difference isn't the water. It's what the deed says about who owns the twenty feet of dock sitting in front of it.
That distinction, not square footage, not the skyline view, not even the neighborhood name, is the single biggest swing factor in what a Foster City "waterfront" listing is actually worth. And right now, while buyers are comparing photos of docks across MLS listings, the city itself is in the middle of rewriting the rules that define what a dock legally is.
Three Words That Mean Three Different Things
Every waterfront listing in Foster City uses the word "dock." Almost none of them clarify which of three very different arrangements that word is describing.
A deeded dock is recorded directly in the property's title or in a recorded easement. The owner controls it, maintains it, insures it, and can generally modify it subject to city permit review. This is the arrangement buyers picture when they imagine stepping off their own patio into their own boat.
An HOA-assigned slip is different. The dock or slip belongs to the homeowners association, not the homeowner, and gets assigned to a specific unit. Rules on boat size, guest use, and fees run through the HOA's CC&Rs, not the deed. Reserve funding for eventual seawall or dredging work often shows up as a line item in HOA budgets that most buyers never ask to see before closing.
A shared or community dock carries no exclusive rights at all. It's a common element, often with a reservation system, and there's no guarantee any specific unit gets continuous access to it over time.
| Dock Type | Who Owns It | What to Request Before You Write an Offer |
|---|---|---|
| Deeded | The homeowner, recorded in title or easement | Deed language, permit history, any prior repair invoices |
| HOA-Assigned | The homeowners association | CC&Rs, reserve study, 12–24 months of board minutes |
| Shared/Community | The HOA as a common element | Reservation policy, current wait list, usage rules |
None of this shows up in a listing photo. All of it shows up in the closing price.
The Median Can't Tell You Which One You Bought
Foster City's price data has been sending mixed signals in 2026, and the mismatch itself is evidence for the dock story, not a contradiction to explain away.
In the rolling three-month window ending April 2026, the citywide median sale price climbed 8.1 percent year over year to $1.6 million, while the median price per square foot in that same window fell 20 percent. A market can't get more expensive per home and cheaper per square foot at the same time unless the mix of homes selling has changed, which is exactly what a market built on a handful of transactions a month will do.
By June 2026, the most recent full month with closed sales on record through MLSListings, the picture had reshaped again. Single-family homes closed at a median of $2,161,250, down just under 1 percent year over year, on only seven closed sales for the entire month. Median price per square foot for those detached homes came in at $1,129. Attached homes, the condos and townhomes clustered around the lagoon's edges, closed at a median of $685 per square foot in the same month, a gap of more than $400 a square foot between the two product types.
Seven single-family closings is not a market. It's a sample size where two waterfront sales with deeded docks, sold in the same month as two inland homes with none, will swing the median by six figures without any underlying shift in demand. Whoever is quoting you a Foster City median without asking whether it's counting deeded docks, HOA slips, or no water access at all is quoting you a number that describes an average of three different products, not the home you're looking at.
The Same Lagoon, Nine Different Neighborhoods
Foster City was built out as a series of distinct subdivisions under its original 1960s master plan, and the dock story plays out differently in each one.
Treasure Isle sits right at the center of the layout, the kind of address people mean when they say "the heart of Foster City." The Islands, developed in the early 1970s around Central Lake, leans heavily toward condominiums and townhomes, with single-family homes typically around 2,000 square feet carrying wide water views rather than private docks. Marina Point, known locally as "The Ships" because its streets carry names like Niantic and Balclutha, sits on the outer ring and blends apartments, townhomes, and condos with single-family homes surrounding Ketch Park, historically the more accessible entry point into the lagoon system. Sea Cloud Park, in the southeast corner, was the last neighborhood built under the original plan and is home to Foster City Little League. Whalers' Island has drawn recognition in Sunset Magazine for its architecture, a reminder that some of the "waterfront premium" here is about design, not just water access.
None of these neighborhood names tell you what kind of dock comes with the house. That still requires reading the deed.
What the Water Actually Lets You Do
Part of what buyers are paying for is access, and access here comes with real limits worth knowing before you fall for a listing photo of a boat.
Gasoline and diesel motors are banned across the entire lagoon system. Only electric-powered boats, sailboats, and human-powered craft like kayaks, canoes, and paddleboards are allowed, and every vessel is capped at a 5 mph speed limit. If you're picturing a speedboat idling behind your own house, that picture doesn't exist here regardless of what your dock rights say. What does exist is a network of two public boat ramps, one at Boat Park and one at Leo J. Ryan Memorial Park, both of which the state's own registry of boating facilities lists as public access points to Foster City Lagoon. Local operators like Edgewater Marine and California Windsurfing rent electric boats and paddle equipment for anyone whose dream home didn't come with a boat included.
That 5 mph, no-motor rule is also part of why the dock distinction matters so much. A deeded dock isn't buying you deep-water boating. It's buying you a quiet, private launch point onto a calm, enclosed system, which is a different value proposition than the marina lifestyle some buyers expect walking in.
The City Is Rewriting the Rulebook While You're Shopping
Here's the part that makes timing matter. Foster City's Planning Commission held study sessions on April 23, 2026 and again on September 3, 2026 to work through a new set of Objective Design and Development Standards specifically for waterfront properties. The goal, according to Hoodline's reporting on the process, is to consolidate scattered rules on setbacks, lot coverage, boat docks, and view protections into a single chapter of the municipal code, Chapter 17.15, replacing subjective design review with clearer, checklist-based standards. As part of that process the city is considering rescinding an existing waterfront policy, Policy 92-001, and is currently surveying waterfront property owners for input before finalizing anything.
The push isn't happening in isolation. Foster City's 2023–2031 state housing allocation requires the city to plan for 1,896 new units, and as of March 2026 the city had completed only 73 of them, with 38 more approved. Objective design standards are one of the tools cities use to speed up permitting generally, and the waterfront chapter is being built with that same pressure in the background even as it has to account for the lagoon's environmental sensitivities.
None of this has been finalized. But a buyer closing on a deeded-dock home this fall is buying under one set of design and permitting rules, and there's no guarantee those are the same rules that will govern a dock replacement, an expansion, or a resale five years from now.
What This Means If You're Looking at the Water Right Now
- Ask for the specific dock designation in writing before you write an offer: deeded, HOA-assigned, or shared. Don't rely on the listing description.
- If the dock runs through an HOA, request the reserve study and the last 12 to 24 months of board minutes, specifically looking for any mention of seawall, bulkhead, or dredging costs.
- Ask your agent or the city whether the property falls under any pending review tied to the Chapter 17.15 waterfront standards process, since that could affect future permit timelines for dock repairs or modifications.
- Treat any citywide median price you're quoted as a starting point for a conversation, not a number that applies to the specific dock type you're evaluating.
A Few Questions Worth Asking Directly
Does every waterfront home in Foster City have a private dock? No. Many townhome and condo communities offer shared launches or assigned slips instead, and some inland-facing units have no water access at all despite marketing language that implies otherwise.
Can I put a motorboat on my dock? Only an electric one. Gas and diesel motors are prohibited lagoon-wide, and every vessel is limited to 5 mph.
Will the new city standards take away dock rights I already have? The current process is about consolidating and clarifying rules, not stripping existing rights, but the specifics are still under review as of this fall. Anyone with a pending purchase or a planned dock project should confirm the property's status directly with the city before assuming today's rules will hold.
If you're comparing a deeded-dock listing against an HOA-assigned one, or trying to figure out what a Foster City lagoon home is actually worth before the design standards process wraps up, I'd rather walk the deed and the HOA file with you than let a listing photo make the decision for you. Andrew Klink offers a complimentary Peninsula market consultation for exactly this kind of question, and Sandy and I are glad to look at the specific property with you before you write an offer.
