The Islands Foster City, CA
Neighborhood #5, including Bayporte and Winston Square; mostly condos and townhomes around the lagoon.
Living in The Islands
The Islands is Foster City's official Neighborhood #5, which also includes Bayporte, Winston Square and Winston Village. Its homes date mostly from the early 1970s, set around the city's lagoon, and it's mostly condos and townhomes, about 85% of sales since 2015, with a small number of single-family homes; some townhomes here run 2,000 square feet with detached two-car garages. The condo and townhome market is steady: 23 sales so far in 2026 at a median around $1.29M, selling at about 100% of asking.
Parking & walkability: Condo and townhome complexes include assigned or garage parking, with guest parking more limited in some complexes. The flat streets and lagoon-side paths make walking and biking easy, and everyday shopping and Leo J. Ryan Park are close by for much of the neighborhood. Highway 92 and Highway 101 are a few minutes away.
What homes in The Islands are doing
Single-family homes in The Islands sold for a median of about $1.49M in 2015–16 and $2.05M in 2024–25, a 37% increase, roughly in line with Foster City as a whole (+39%). Prices peaked in 2021 at $2.61M.
Median single-family price, 2015–2026
* 2026 covers January through September. Hollow dots mark years with fewer than 3 single-family sales; treat those medians as rough. 56 single-family sales since 2015.
| Year | Sales | Median price | $/sq ft | Days on market | Sale-to-list |
|---|---|---|---|---|---|
| 2026 (Jan–Sep) | 0 | — | — | — | — |
| 2025 | 2 few sales | $1.66M | $1,056 | 15 | 102.2% |
| 2024 | 6 | $2.17M | $966 | 42 | 98.4% |
| 2023 | 2 few sales | $2.35M | $916 | 30 | 92.6% |
| 2022 | 8 | $2.15M | $938 | 15 | 101.6% |
| 2021 | 4 | $2.61M | $1,097 | 11 | 112.4% |
| 2020 | 7 | $1.99M | $860 | 4 | 100.0% |
| 2019 | 6 | $1.9M | $777 | 14 | 100.6% |
| 2018 | 8 | $2.08M | $968 | 13 | 110.0% |
| 2017 | 5 | $1.56M | $705 | 27 | 100.5% |
| 2016 | 3 | $1.6M | $711 | 24 | 100.1% |
| 2015 | 5 | $1.43M | $707 | 12 | 110.5% |
Condos & townhomes in The Islands (323 sales since 2015)
| Year | Sales | Median price | $/sq ft | Days on market | Sale-to-list |
|---|---|---|---|---|---|
| 2026 (Jan–Sep) | 23 | $1.29M | $869 | 36 | 100.0% |
| 2025 | 28 | $1.42M | $959 | 14 | 101.1% |
| 2024 | 20 | $1.36M | $968 | 15 | 102.0% |
| 2023 | 20 | $1.42M | $924 | 13 | 100.0% |
| 2022 | 23 | $1.52M | $985 | 11 | 107.8% |
| 2021 | 29 | $1.45M | $941 | 8 | 106.8% |
| 2020 | 24 | $1.3M | $876 | 12 | 102.9% |
| 2019 | 33 | $1.23M | $835 | 17 | 102.0% |
| 2018 | 33 | $1.3M | $923 | 11 | 108.9% |
| 2017 | 32 | $1.22M | $808 | 11 | 110.2% |
| 2016 | 26 | $1.1M | $707 | 12 | 111.2% |
| 2015 | 32 | $1.06M | $721 | 13 | 113.0% |
The Islands on the map
Borders are built lot by lot from the county's property lines and where homes have been listed (MLS neighborhood codes), and stay inside official city limits (dashed), so a home or two along an edge may differ from official MLS lines.
Other Foster City neighborhoods
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Source: MLSListings, Inc. closed sales, 2015–September 2026, summarized by Drew Lehr. Neighborhood figures combine the MLS area(s) that make up The Islands; where there are several, yearly figures are sales-weighted. Information deemed reliable but not guaranteed.