350 Willowbrook Road, PORTOLA VALLEY, CA 94028 (MLS # ML82044823)
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Originally the 1912 gatehouse to Willowbrook Farm, this iconic compound was expanded and totally rebuilt in 2012. This "Home of the Future" is within a storied stone envelope, set on 1.13 flat, gated acres. The over 5,000sf compound features soaring ceilings, Venetian plaster walls, individually climate-controlled rooms, including the wine/library lower level, and a finished attic retreat. The culinary kitchen is a masterpiece with Carrara marble counters, a massive island, and chef-quality appliances. Designed for a "live-work-play" lifestyle, the estate includes a detached guest Cottage and a huge studio that can serve as the ultimate tech HQ, yoga sanctuary, or artist retreat (virtually staged). 10 Tesla Powerwalls (135kWh) for 48-hour grid independence + 80amp EV charging. Direct $50k fiber line; 12 Wi-Fi 7/6 access points for full-acre coverage. 10-zone smart HVAC (9 new units in 2024) with simultaneous heat/cool capability and 24/7 Unifi AI security. Water: Whole-home filtration, leak-detection shut-off, and smart Rachio irrigation. The Grounds: A resort-style sanctuary featuring a crushed granite drive, double electronic gates, a meandering creek, and an expansive pool decks with a dedicated bath. Updated for the next century of living.
| LAST UPDATED | 5/7/2026 | YEAR BUILT | 2012 |
|---|---|---|---|
| GARAGE SPACES | 2.0 | COUNTY | San Mateo |
| STATUS | Active | PROPERTY TYPE(S) | Single Family |
| ADDITIONAL DETAILS | |
| AIR | Zoned |
|---|---|
| AIR CONDITIONING | Yes |
| EXTERIOR | Balcony, Other, Storage |
| FIREPLACE | Yes |
| GARAGE | Yes |
| HEAT | Zoned |
| LOT | 1.13 acre(s) |
| LOT DESCRIPTION | Other |
| LOT DIMENSIONS | 49179.00 |
| PARKING | Detached, Electric Vehicle Charging Station(s), Garage Door Opener, Oversized |
| POOL DESCRIPTION | Pool Cover, Heated, In Ground |
| SEWER | Public Sewer |
| STORIES | 2 |
| WATER | Public |
| ZONING | R1001A |
The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of the MLSListings™ MLS system. All real estate listings in the MLSListings MLS system are marked with the MLSListings Internet Data Exchange icon (a stylized house inside a circle), and detailed information about them includes the names of the listing brokers and listing agents.
Based on information from MLSListings MLS as of 5/29/26 2:13 PM PDT. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
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This IDX solution is (c) Diverse Solutions 2026.
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