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$8,500,000
38 Days On Site

1390 Westridge Drive
Portola Valley, CA 94028

For Sale|Single Family Residence|Active
5
Beds
4.5
Total Baths
4
Full Baths
1
Partial Bath
3,520
SqFt
$2,415
/SqFt
1964
Built
County:
San Mateo
Listed by of Hugh Cornish of Coldwell Banker Realty (650) 619-6461
Call Now: (831) 524-2841
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(831) 524-2841
1390 Westridge Drive1390 Westridge Drive1390 Westridge Drive1390 Westridge Drive
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Mortgage Calculator

Monthly Payment (Est.)

$38,780
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

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 desirable property. Total Finished square footage: 4,390 sq. ft. (main house: 3,520 sq. ft. and ADU: 870 sq. ft.)

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Listing Snapshot
Price 
$8,500,000
Days On Site 
38 Days
Bedrooms 
5
Inside Area (SqFt) 
3,520 sqft
Total Baths 
4.5
Full Baths 
4
Partial Baths 
1
Lot Size 
1.1792 Acres
Year Built 
1964
MLS® Number 
ML82033403
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
a month agoListing updated with changes from the MLS®
a month agoListing first seen on site
General Features
Acres 
1.1792
Attached Garage 
Yes
Cross Street 
Portola Road
Disclosures 
NHDS Report
Foundation 
Concrete Perimeter
Garage 
Yes
Garage Spaces 
2
Number Of Stories 
1
Parking 
AttachedCarport
Property Sub Type 
Single Family Residence
Security 
Security System
Sewer 
Septic Tank
SqFt Total 
3520
Style 
Contemporary
Water Source 
Public
Zoning 
R1001A
Interior Features
Appliances 
DryerDisposalDishwasherExhaust FanFreezerMicrowaveRefrigeratorRange HoodDouble OvenGas RangeWasher
Cooling 
Central Air
Electric 
Generator
Fireplace 
Yes
Fireplace Features 
Living Room
Fireplaces 
1
Flooring 
HardwoodTile
Heating 
Forced Air
Interior 
Eat-in KitchenVaulted Ceiling(s)PantryMaster DownstairsWalk-In Closet(s)High CeilingsDouble VanityKitchen Island
Laundry Features 
Laundry RoomInside
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Exterior Features
Exterior 
Fire PitBalconyStorage
Fencing 
Fenced
Lot Features 
ViewsBack Yard
Other Structures 
Storage
Patio And Porch 
Patio
Pool Features 
None
Roof 
Metal
View 
Hills
Waterview 
Hills
Community Features
School District 
Sequoia Union High
Schools
School District
Sequoia Union High
Elementary School
Unknown
Middle School
Unknown
High School
Unknown
Listed by of Hugh Cornish of Coldwell Banker Realty (650) 619-6461



The data relating to real estate for sale on this display comes in part from the Internet Data Exchange program of the MLSListings™ MLS system. Real estate listings held by brokerage firms other than eXp Realty are marked with the Internet Data Exchange icon and detailed information about them includes the names of the listing brokers and listing agents. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Copyright 2026, MLS Listings, Inc..
Last checked: 2026-03-13 06:32 AM UTC

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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