Foster City · San Mateo County

Whalers Island

Whalers Island is a master-planned section of Foster City offering single-family homes and townhomes on a peninsula formed by the lagoon system.

Median Sale
$2,247,713
March 2026 · 10 closings

Whalers Island Real Estate Market Snapshot

Median Sale Price
$2,247,713
+2.2% vs prior-year median
Avg. Days on Market
20
% List Price Received
106%
Months of Inventory
0.8
Homes Sold (March 2026)
10
Median price trend
2025 · $2,200,000 March 2026 · $2,247,713
List-price received
106%
90%100%120%+

As of March 2026 · Source: SAMCAR/MLSListings

Living in Whalers Island

Whalers Island sits within Foster City as a master-planned peninsula carved out of the city's interior lagoon system, connected to the broader street grid by bridges over the water. The pocket combines detached single-family homes with townhome and condominium developments, and the lagoon geometry means most parcels carry either direct waterfront frontage, a dock easement, or short-walk access to a shared lagoon edge. Housing stock skews to original 1970s and 1980s construction with a layer of substantial remodels through the 2000s and 2010s.

What distinguishes Whalers Island from the rest of Foster City is the deliberate isolation: the bridge-fed street pattern produces meaningfully lower through-traffic than Beach Park Boulevard or the Town Center side, and the lagoon perimeter functions as a natural buffer. Many of the townhome and condominium developments inside Whalers Island operate under mandatory HOAs (City of Foster City HOA Prototypes), while detached single-family parcels typically carry no HOA but may be subject to original master-plan CC&Rs and Waterfront Setback Policy 92-2001 view-protection setbacks where they front the lagoon.

Schools

Whalers Island falls within the San Mateo-Foster City School District (SMFCSD) at the K-8 level, with Audubon, Beach Park, Brewer Island, and Foster City Elementary plus Bowditch Middle as the in-district options (San Mateo-Foster City School District). High school students attend San Mateo Union High School District, with San Mateo High and Aragon High serving most Foster City addresses. SMFCSD operates open-enrollment within district boundaries subject to space; buyers should confirm both K-8 attendance and high school assignment at the parcel level before writing offers.

Lifestyle

Daily life on Whalers Island centers on the lagoon: kayaking, paddle-boarding, and small-boat sailing launch directly from many properties or from the city's Boat Park access at Leo J. Ryan Park nearby. The Foster City Recreation Department runs sailing and water-safety programming on the central lagoon, and the Bay Trail along the eastern shoreline is reachable within minutes for cycling and walking. Charter Square on Shell Boulevard provides daily-needs retail, and the broader Foster City parks system feeds into the neighborhood through pedestrian connections off the bridges.

Commute

Whalers Island sits inside Foster City's broader US-101 and Highway 92 access geometry, with the San Mateo-Hayward Bridge a short drive for East Bay commuters and US-101 reachable in roughly five to ten minutes depending on bridge approach. SFO is approximately twelve to fifteen minutes north on US-101. The Hillsdale and Hayward Park Caltrain stations sit eight to ten minutes west by car. SamTrans bus routes serve the city, and Foster City's flat grid plus the Bay Trail support cycling commutes for nearby employers including Visa in Foster City and the Redwood Shores corridor.

Market

The Whalers Island Market Right Now

Whalers Island trades inside the broader Foster City single-family market, where the 2025 annual median sat at $2,200,000 across 103 closings at 105% of list and seventeen days on market, with the March 2026 single-family median moving to $2,247,713 across ten closings at 106% of list and twenty days on market (SAMCAR/MLSListings San Mateo County data). Whalers Island's lagoon-fronting and waterfront-view parcels typically transact at or above the citywide median, with the deepest premiums on dock-accessible single-family lots. The townhome and condominium segment inside Whalers Island sits in the broader Foster City PUD band, generally $800,000 to $1.4 million depending on size, lagoon proximity, and HOA amenity load. Single-family buyers should anticipate three-to-six-offer scenarios for turnkey homes given citywide inventory of roughly 0.8 months.
Transactions

What Buyers and Sellers Should Know About Whalers Island

Whalers Island parcels sit within Foster City's R-1 Single-Family Residence District under Municipal Code Chapter 17.12, with the Waterfront Setback Policy 92-2001 imposing additional setbacks on lagoon-fronting lots and special fence, wall, and hedge standards on waterfront R-1 parcels (Foster City Municipal Code Chapter 17.12; Foster City Planning Commission Policy 92-2001). Applications submitted on or after February 19, 2026 must comply with new objective Single-Family and Two-Family Design and Development Standards, which removes subjective staff judgment from review (City of Foster City Single-Family and Two-Family Objective Design and Development Standards). Foster City is a general law city; total documentary transfer tax remains $1.10 per $1,000 of consideration split equally between city and county after the City Council's August 25, 2025 vote not to pursue a charter or transfer-tax measure (San Mateo County Association of REALTORS). The Estero Municipal Improvement District operates the public sewer collection system and there is no point-of-sale lateral compliance ordinance (Foster City Public Works). Sellers of lagoon-fronting Whalers Island lots should disclose Waterfront Setback Policy 92-2001 view-protection setbacks recorded as restrictions, plus any sea-level-rise or engineered-fill considerations on the NHD report.
Field Notes

Market Notes by Lisa M. Lum

Recent activity in Foster City through Q1 2026 has shown overbid intensity strengthening modestly from 105% to 106% year-over-year on single-family resales, with lagoon-fronting Whalers Island parcels typically commanding a premium to the citywide median (SAMCAR/MLSListings). Lisa Lum observes that Whalers Island buyers tend to weigh dock access, view orientation, and Waterfront Setback Policy 92-2001 implications alongside HOA dues and reserve health, and that sellers who address SB 326 balcony inspection records and any active or deferred special assessments before listing generally achieve cleaner contract terms.

Updated 2026-05-06

Frequently Asked Questions about Whalers Island

Do Whalers Island homes have direct lagoon access?
Many do. The peninsula geometry means a high share of parcels carry waterfront frontage, dock rights, or short-walk access to the shared lagoon edge. Specific dock and water-access rights vary by development and CC&R; buyers should review preliminary title and HOA documents to confirm.
Is there a single homeowners association covering Whalers Island?
No. Whalers Island contains multiple HOAs governing specific townhome and condominium developments rather than one master association (City of Foster City HOA Prototypes). Detached single-family homes generally carry no HOA but may be subject to original master-plan CC&Rs.
Do lagoon-fronting Whalers Island lots carry view-protection setbacks?
Yes. Foster City's Waterfront Setback Policy 92-2001 imposes additional setbacks on lagoon-fronting parcels to protect water views, with special fence, wall, and hedge standards on waterfront R-1 lots (Foster City Planning Commission Policy 92-2001). Sellers should disclose recorded setback restrictions.
Does Foster City require a sewer lateral inspection at sale for Whalers Island?
No. Foster City has no city-specific point-of-sale private sewer lateral compliance ordinance; the Estero Municipal Improvement District operates the public collection system and most Whalers Island homes connect directly to public sewer (Foster City Public Works).
What do HOA dues typically run for Whalers Island townhomes and condos?
Foster City PUD developments commonly run roughly $400 to $900 monthly depending on amenities and association size. Buyers should request the full HOA disclosure packet, recent reserve study, and any active or deferred special assessments during due diligence.
What is the transfer tax in Whalers Island, San Mateo County?
San Mateo County charges a base transfer tax of $1.10 per $1,000 of consideration, paid by the seller at close. Some cities add a local supplemental tax. Whalers Island does not impose an additional municipal transfer tax beyond the county base.
Does Whalers Island require a sewer lateral inspection at sale?
Several San Mateo County jurisdictions require a private sewer lateral compliance certificate before close of escrow. The requirement varies by city — confirm with your transaction coordinator early in the listing process.
What disclosures are required when selling a home in Whalers Island?
California requires Transfer Disclosure Statement, Natural Hazard Disclosure, lead-based paint (pre-1978), water-conserving plumbing fixtures, and smoke and carbon monoxide alarm certifications. San Mateo County properties may also require sewer lateral compliance and local supplemental disclosures.
What is the difference between median and average home price in Whalers Island?
Median price is the middle number when all sale prices are sorted — half of homes sold above, half below. It resists distortion from a few very expensive sales. Average price is the arithmetic mean and can be skewed upward by individual high-end transactions. Median is the more reliable indicator of typical Whalers Island home pricing.

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Last updated 2026-05-06 · By Lisa M. Lum, Realtor® · Coldwell Banker Realty · DRE 02005150