21 Valley Oak Street, Portola Valley, California 94028, Portola Valley, 94028 - 4 bed, 4 bath

21 Valley Oak Street, Portola Valley, California 94028 home-pic-0

21 Valley Oak Street

Portola Valley, California 94028

ACTIVE
CONDITION: GOOD
4Beds
4Baths
3,470Sq Ft
25,966Lot Size

Property Price

LIST PRICE$3,499,000
EST. MARKET VALUE
$3,598,395

SUMMARY

Analysis of 21 Valley Oak Street, Portola Valley, California 94028 reveals a Fairly Priced Property with a current list price of $3,499,000  aligned with the estimated $3,598,395 Fair Market Value. This represents a stable investment opportunity at market rate. The property maintains a Good Condition Rating (78/100), reflecting solid structural condition with well-maintained systems. The property presents an attractive opportunity for buyers seeking a move-in ready home. Located in a high-demand neighborhood within the Portola Valley Unified School District, this asset is categorized as a low-risk, high-reward acquisition suitable for both Buy-and-Hold Investors and Owner-Occupants willing to undertake light renovation work.

Estimated Market Value

$3,598,395
Based on Realkey algorithm analyzing recent comparable sales in Portola Valley.

Comparable Sales Map

Comparables within 1 miles sold in recently

Address Sold Price BedsBathsSq Ft$/SqftDistance
21 Valley Oak Street
Subject
$3,499,000*
List Price
443,470$1,037-
A
11 Hawk View
Sold
$4,025,000444,106$9800.2 mi

* Subject property listed price vs sold prices of comps.

Condition Analysis

OVERALL CONDITION SCORE

Good
TeardownExcellent

Property is move-in ready.

The property is in move-in ready condition with significant recent cosmetic updates, including new paint and lighting throughout. The gourmet kitchen features modern stainless steel appliances, and the primary suite offers a spa-inspired ensuite. Although built in 1988, the home has been well-maintained and modernized to meet current market expectations, falling into the 'good' category as it lacks the 'newly built' or 'total renovation' status required for an excellent rating.

PROSSTRENGTHS & OPPORTUNITIES

  • High Available Lot Utilization

    The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 25966, living area = 3470.

  • Great Schools

    High School: Henry M. Gunn High School (9/10).

  • Exceptional Privacy and Lot Size

    Situated on a generous 25,966 SF lot enveloped by iconic oaks, this property offers a secluded retreat that provides unmatched privacy while remaining conveniently close to Silicon Valley tech hubs.

CONSRISKS & DEFICIENCIES

  • 1980s Era Construction

    Built in 1988, the residence may require more frequent maintenance or updates to major systems compared to newer luxury constructions in the Portola Valley area.

  • Recurring Association Fees

    The $540 monthly association fee represents a significant recurring carrying cost that buyers must factor into their monthly budget alongside the multi-million dollar mortgage.

About 21 Valley Oak Street

Escape to serenity in this very private 4-bedroom, 3.5-bathroom retreat priced at $3,499,000. 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 Valley's 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 Valley's 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!

Property Details

Public Facts

Property Type
Single Family Residence
Year Built
1988
Lot Size
25,966 Sq. Ft.

Interior

Total Bedrooms
4
Total Bathrooms
4 (4 Full, 0 Half)

Exterior & Parking

No exterior & parking available.

Utilities & Misc

HOA Fee
$540.0 / Month

Neighborhood Insights

Portola Valley Unified Schools

Ormondale Elementary School

Grades K-3 • 1.3 mi

/10

Lucille M. Nixon Elementary School

Grades K-5 • 4.1 mi

8/10

Corte Madera School

Grades 4-8 • 0.6 mi

8/10

Sensitive Facilities

No sensitive facilities data found.

Neighborhood Comparison

FeatureSubjectAverage HomeNeighborhood Ranking (50 Listings)
Beds4.04.0
50%
Baths4.03.5
50%
Square foot3,4703,200
54%
Lot Size25,96635,051
50%
Price$3.50M$4.19M
31%
Price per sq ft$1.0K$1.3K
23%
Built year19881970
69%
HOA$540.0$0
88%
Days on market46168
4%

Pricing History

Listed for Sale

Jan 20, 2026

$3,499,000

Initial Listing

Sold

Nov 8, 2012

$2,300,000

Public Record

Sold

Nov 5, 2004

$1,850,000

Public Record

Sold

Sep 12, 1995

$819,000

Public Record

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