Dolphin Bay Foster City, CA
Neighborhood #8, with Port Royal and Nantucket Cove; almost entirely single-family homes.
Living in Dolphin Bay
Dolphin Bay is Foster City's official Neighborhood #8, which also includes Port Royal and Nantucket Cove, and its streets are named after bays, like Chesapeake, Galveston and Bodega. Most homes went up in an early-to-mid-1970s wave of ranch and two-story houses, and the 82-unit Nantucket Cove townhomes followed in 1988. It's almost entirely single-family homes, and it's been one of Foster City's strongest performers: the median rose about 71% from 2015–16 to 2024–25, well ahead of the city's 39%, and homes sold for about 111% of asking on average in 2025.
Parking & walkability: Most homes have an attached two-car garage and a driveway, and the residential streets are quiet and easy to park on. The flat streets and lagoon-side paths make walking and biking easy, and everyday shopping is a short drive or bike ride away. Highway 101 and Highway 92 are both a few minutes away.
What homes in Dolphin Bay are doing
Single-family homes in Dolphin Bay sold for a median of about $1.53M in 2015–16 and $2.61M in 2024–25, a 71% increase, ahead of Foster City as a whole (+39%). In 2025, homes here sold quickly (median 9 days on market) and usually above asking (111.2% of list price on average). So far in 2026 (3 sales through September), the median is $2.33M.
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. 140 single-family sales since 2015.
| Year | Sales | Median price | $/sq ft | Days on market | Sale-to-list |
|---|---|---|---|---|---|
| 2026 (Jan–Sep) | 3 | $2.33M | $1,412 | 11 | 98.8% |
| 2025 | 15 | $2.62M | $1,263 | 9 | 111.2% |
| 2024 | 11 | $2.6M | $1,256 | 9 | 112.8% |
| 2023 | 17 | $2.36M | $1,071 | 7 | 101.7% |
| 2022 | 7 | $2.2M | $1,168 | 9 | 101.0% |
| 2021 | 14 | $2.15M | $1,212 | 7 | 122.9% |
| 2020 | 11 | $1.89M | $922 | 8 | 104.8% |
| 2019 | 10 | $1.92M | $994 | 12 | 100.9% |
| 2018 | 17 | $1.91M | $1,014 | 12 | 107.8% |
| 2017 | 13 | $1.7M | $1,049 | 11 | 111.6% |
| 2016 | 11 | $1.51M | $799 | 14 | 107.0% |
| 2015 | 11 | $1.55M | $852 | 12 | 110.1% |
Dolphin Bay 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 Dolphin Bay; where there are several, yearly figures are sales-weighted. Information deemed reliable but not guaranteed.