Brookside & Willowbrook Portola Valley, CA
A small area of single-family homes in Portola Valley, near Canyon Drive.
Living in Brookside & Willowbrook
Brookside & Willowbrook is a small area of single-family homes in Portola Valley. Only a few homes sell each year, so medians swing, but homes here tend to sell quickly: 2025 sales went under contract in a median of 3 days, at about 107% of asking.
Parking & walkability: Homes have driveways and off-street parking, and the roads are quiet and rural. Portola Valley's town center, trails and open space are close by, and Highway 280 and Stanford are a short drive.
What homes in Brookside & Willowbrook are doing
Prices peaked in 2022 at $4.6M. In 2025, homes here sold quickly (median 3 days on market) and usually above asking (106.8% of list price on average).
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. 39 single-family sales since 2015.
| Year | Sales | Median price | $/sq ft | Days on market | Sale-to-list |
|---|---|---|---|---|---|
| 2026 (Jan–Sep) | 2 few sales | $2.63M | $1,676 | 13 | 95.7% |
| 2025 | 3 | $3.2M | $1,655 | 3 | 106.8% |
| 2024 | 1 few sales | $2.23M | $1,391 | 2 | 117.1% |
| 2023 | 1 few sales | $2.4M | $1,269 | 11 | 100.0% |
| 2022 | 3 | $4.6M | $1,426 | 9 | 104.5% |
| 2021 | 11 | $3M | $1,338 | 9 | 102.4% |
| 2020 | 1 few sales | $3.31M | $1,203 | 4 | 94.8% |
| 2019 | 5 | $2.64M | $1,293 | 49 | 98.9% |
| 2018 | 1 few sales | $2.8M | $1,359 | 9 | 101.8% |
| 2017 | 3 | $2.75M | $1,285 | 13 | 105.3% |
| 2016 | 4 | $3M | $992 | 63 | 98.0% |
| 2015 | 4 | $2.87M | $1,012 | 9 | 105.4% |
Brookside & Willowbrook 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 Portola Valley 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 Brookside & Willowbrook; where there are several, yearly figures are sales-weighted. Information deemed reliable but not guaranteed.