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$3,599,000
Listing Price4beds
4baths
3,470sqft
25,966sqft lot
21 Valley Oak St, Portola Valley, CA 94028
Member Features
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Full foreclosure details
Home value, equity and ownership info
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Get full access with a FREE Account
Already a member?
For Sale
Home type
Price / sqft
Year built
Home Details
Escape to serenity in this very private 4-bedroom, 3.5-bathroom retreat priced at $3,599,000. Spanning 3,470 square feet on a 25,966 SF lot, this 1988-built residence blends timeless elegance with modern sophistication. The light-filled interior boasts soaring ceilings, large windows, new paint, and lighting throughout, creating an inviting open-concept layout ideal for both grand entertaining and tranquil living. A gourmet kitchen, featuring stainless steel appliances flows seamlessly into spacious living and dining areas. The private primary suite offers a luxurious, spa-inspired ensuite, creating a serene haven. Outside, the beautifully landscaped lot, enveloped by Portola Valleys iconic oaks, provides a secluded oasis for relaxation or outdoor gatherings. Enjoy an excellent community of neighbors and access to top-rated schools, including Ormondale Elementary, Corte Madera Middle, and Woodside High School (buyer to verify eligibility). Perfectly positioned to get away from the lights of the city while remaining close to Silicon Valleys tech hubs, scenic trails, and Roberts Market, this home offers unmatched privacy and convenience. Seize this rare opportunity to own a slice of Portola Valleys idyllic lifestyle!
Interior Details
3470
4
4
Has Heating:
Yes
Heating Type:
Central
Has Cooling:
Yes
Cooling Type:
Central
Has Fuel:
Yes
Fuel Type:
Gas
Has Basement:
No
Basement Type:
N/A
Has Flooring:
No
Flooring Type:
N/A
Has Fireplace:
Yes
Fireplace Type:
N/A
Property Details
25966
Yes
Yes
Type:
Carport (unspecified)
Location:
N/A
Status:
N/A
Number of Spaces:
2
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Construction Details
Contemporary
Wood Siding
N/A
N/A
Composition Shingle
Tax History
Year
Amount
Land
Improvement
Percent Change
Assessment
2020
$30,407
$1,407,477
$1,182,280
--%
$2,589,757
2019
$30,051
$1,379,880
$1,159,099
--%
$2,538,979
2018
$28,584
$1,352,824
$1,136,372
--%
$2,489,196
2017
$28,211
$1,326,299
$1,114,091
--%
$2,440,390
2016
$27,695
$1,300,294
$1,092,247
--%
$2,392,541
2014
$26,739
$1,255,675
$1,054,767
--%
$2,310,442
2013
$26,353
$1,250,000
$1,050,000
--%
$2,300,000
2012
$23,172
$1,026,524
$1,026,524
--%
$2,053,048
Average Home Price in 94028
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Sold Date
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Sold 10/06/2026
$3,599,000
$3,599,000
4 Beds
4 Baths
3,470 Sqft
25,966 Lot (sqft)
Sold 09/29/2026



