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1390 Westridge Drive, Portola Valley, CA 94028

$8,500,000

$2,415 per ft²

5 Bed

5 Bath

3,520 Sq Ft

1.1792 Acres

Listing Office: Coldwell Banker Realty

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Contemporary single-level main residence with attached two-story ADU on 1.1+ private acres finished in 2021, offering direct Windy Hill views and walking distance to Portola Valley Town Center, library, restaurants, farmers market, and trailheads. Striking modern architecture features walls of glass, soaring ceilings, skylights, and white oak floors throughout. The dramatic great room opens to covered and open terraces and a level lawn just off the living room patio, with rear grounds anchored by a heritage oak. The designer kitchen showcases Calacatta marble surfaces, a waterfall island, and high-end appliances. The main residence includes a dedicated office, four bedrooms, and three and a half baths, highlighted by a serene primary suite with Windy Hill views and a Zen-inspired bath with private garden. A privately located bedroom suite is ideal for guests or an au pair. The attached ADU offers one bedroom, one bath, a full kitchen, and a living room with fireplace, with finishes matching the main home. Gated entry, custom pavers, cedar entry door, fountains, mature landscaping, level synthetic lawn, raised garden beds, and fully fenced grounds complete this rare blend of architectural sophistication, privacy, walkable convenience, and iconic hillside scenery.

Listing Agent: Hugh Cornish

License Number: 00912143

Offered by: Coldwell Banker Realty

Office Phone: (650) 324-4456

MLS: #ML82033403

California Regional MLS

Date Added: 02/02/2026 12:00:00 am

Last Update: 02/02/2026 07:51:39 pm

Days on Market: 3

Interior

General: Atrium,Walk-In Closet(s)
Appliances: Double Oven,Dishwasher,Freezer,Disposal,Microwave,Refrigerator,Range Hood,Vented Exhaust Fan,Dryer,Washer
Flooring: Tile,Wood
A/C: true, Central Air
Heating: true, Forced Air
Fireplace: Living Room, Fireplace

Exterior

Style: Contemporary
Parking: Carport, Parking spaces: 4

Construction

Roofing: Metal
Windows: Skylight(s)
General: 1, Block,Concrete Perimeter

Location

Originating MLS: CRMLS_MLSL
School District: Other
County: San Mateo

Lot

Zoning: R1001A, 077034080
View: Hills, View

Utilities

Water: Public
Sewer: Septic Tank

Financial

Source: CRMLS_MLSL

Property

Year Built: 1964
Type: Single Family Home
Style: Contemporary
Neighborhood: Central Portola Valley
Parcel #: 077034080

Schools

District: Other

02/02/2026$8,500,000@ 2415 per ft²Listed

02/02/2026Active

Listing Broker

Tade Keshishyan

1 @

License #: 02190628

Email: [email protected]

Phone: 8183592303

Location: CA

Last Updated: 02/02/2026 07:51:39 pm

Offered by: Hugh Cornish, 00912143, 650-619-6461 @ Coldwell Banker Realty

MLS: #ML82033403

Source: California Regional MLS

<IMG SRC='https://d37ukvrrv3in12.cloudfront.net/mls/logos/IDX_580_large.png' ALT='IDX'> Based on information from California Regional Multiple Listing Service, Inc. and /or other sources. 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. The data contained herein is copyrighted by CRMLS and is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited.<BR><BR>The information being provided by California Regional Multiple Listing Service, Inc. (“CRMLS”) is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Any information relating to a property referenced on this web site comes from CRMLS. Properties may or may not be listed by the office/agent presenting the information. Real estate listings held by brokerage firms other than this broker are marked with the Internet Data Exchange logo and detailed information about them includes the names of the listing brokers and listing agents. MLS search engine provided by <A HREF='http://www.realtywatchsolutions.com/' TARGET='_blank'>RealtyWatch Solutions</A>. This data is updated every 2 hours. Some properties appearing for sale on this display may subsequently have sold and may no longer be available. Data displayed may be a portion of, and not a complete set of all listings published in the MLS.

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1390 Westridge Drive, Portola Valley, CA 94028 is a 5 Bed, 5 Bath, 3,520 Sq Ft, 1.1792 Acres, Single Family Home built in 1964.

This property is currently available and was listed by California Regional MLS on 02/02/2026 12:00:00 am. The MLS # for the property is MLS #ML82033403.