CA
Santa Clara
LOS ALTOS
94022
643 Jay Street
643 Jay Street, LOS ALTOS, CA 94022
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Listing Type
Single Family
Listing Status
Active
28
$4,995,000

Home Details for 643 Jay Street

Price
$4,995,000
Type
Residential
Bedrooms
5
Bathrooms
Square feet
1408
Year built
1950
County
Santa Clara
Garage
2
Days on site
0
MLS Listing#
ML82031048
Listed By: Christie's International Real Estate Sereno - 650-947-2900
Listed By: Owen Halliday
Property Description

First time on the market in more than 50 years. An exceptional land-value opportunity in one of Los Altos most coveted neighborhoods. Set on an impressive 19,900 (appr.) SF parcel, this tranquil property offers a rare canvas for builders, investors, or visionary buyers seeking to create a custom estate in a truly special location. The existing residence consists of a 3-bedroom, 1.5-bath main home, complemented by an independent in-law unit with 2 bedrooms, a full bath, a generous living area, and a kitchenette - for a total of 5 bedrooms, 2 full and 1 half baths. While the structures are ready for transformation, the true value lies in the expansive lot, tranquil setting, and exceptional location. The oversized grounds present abundant possibilities for new construction, thoughtful expansion, or a complete reimagining of the property, subject to buyer verification. Mature surroundings and a spacious footprint provide the ideal foundation for a future luxury residence with ample outdoor living. Just minutes from top-rated Los Altos schools (Almond Elementary, Egan Middle, and Los Altos High), downtown shops and dining, parks, and major Silicon Valley commute routes, this is a rare opportunity to secure a large parcel in a premier location and bring a bold vision to life.

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Property Features
  • Fire Place
    • Living Room
    • Wood Burning
    • Other
  • Heating Information
    • Forced Air
    • Central
  • Parking
    • Attached
    • Garage Door Opener
  • Cooling Information
    • None
  • Water Features
    • Public
  • Garage
    • 1
School Information
School Information for 643 Jay Street, LOS ALTOS, CA 94022
Elementary School
Almond Elementary
Middle School
Ardis G. Egan Intermediate
High School
Los Altos High
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Based on information from the MLSListings MLS. 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. Copyright 2026 MLSListings Inc. All rights reserved.

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Last Updated: 2026-01-16 15:16:18
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EXIT REALTY CONSULTANTS
16175 Monterey #A, Morgan Hill, CA 95037
CA DRE# 01424183. Kris Klair Broker.
Margaret Vierra
Associate Broker
Office
209 668 2525
Agent
408 202 3243
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