$4,995,000

643 Jay Street, Los Altos, CA 94022

  • 5 beds |
  • 3 baths |
  • 1,408 sqft
  • Property Icon Single-Family Home
  • Property Year Built Icon Built in 1950
  • Property Lot Size Icon0.46acre lot
  • Property Parking Icon 2 car garage
  • Property Price Per Square Feet Icon $3,548/sqft
  • Property List Date Icon Listed 1 month ago

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.

Listing Status:
Pending
Date Added:
January 13, 2026
Data Last Updated:
February 16, 2026 at 5:16AM
Listing Office:
Christie's International Real Estate Sereno : (650) 947-2900
Listing Agent:
Owen Halliday : 650-492-0062
MLS ID:
ML82031048
  • Flooring: Carpet
  • A/C: None
  • Heating: Central
  • Fireplace: Living RoomWood BurningFireplace
  • Style: Ranch
  • Parking: GatedParking spaces: 2
  • Roofing: Shingle
  • General: 1Concrete PerimeterSlab
  • Originating MLS: CRMLS_MLSL
  • School District: Other
  • County: Santa Clara
  • Zoning: R117020056
  • Water: Public
  • Sewer: Public Sewer
  • Source: CRMLS_MLSL

This listing courtesy of Owen Halliday , Christie's International Real Estate Sereno

Monthly Payment

$Est. Payment
  • Principal & Interest $
  • Property Taxes $
  • Home Insurance $
  • VA Funding Fee $

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Location

Schools Nearby

L

Los Altos High School

201 Almond Ave, Los Altos, CA, 94022

Grades 9-12

0.56 miles away

Disclaimer: School and School District information courtesy of the National Center for Education Statistics (NCES). School boundaries may change. Proximity to listed schools does not guarantee enrollment eligibility. Contact the school district for more information and exact boundaries.