643 Jay St, Los Altos, CA 94022
Property image
Property image
SOLD
FEB 17, 2026

$5,880,100

Trulia Estimate
  • 5 Beds
  • 2.5 Baths
  • 1,408 sqft (on 0.46 acres)

643 Jay St, Los Altos, CA 94022

Est. Refi. Payment $36,887/mo*
Refinance Your Home
Currently Off Market - Sold Feb 17, 2026 for $5,900,000 (18% above list price)

Home Value

Trulia Estimate
$5.88M
Since last month
Increased$38K (+0.6%)
Since last year
Increased$2M (+64%)
Since last sale
Decreased$14K (-0.2%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +139% in the last 10 years
MonthEstimated value
2026
September 2026$5.89M
August 2026$5.88M
July 2026$5.85M
June 2026$5.85M
May 2026$5.92M
April 2026$5.89M
March 2026$5.87M
February 2026$5.89M
January 2026$5.2M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
648 Spargur Dr, Los Altos, CA
0.04
Single-Family Home
$6,000,000
03/04/26
4
3
2,948
83 Doud Dr, Los Altos, CA
0.31
Single-Family Home
$6,760,000
03/02/26
4
2
2,327
721 Raymundo Ave, Los Altos, CA
0.28
Single-Family Home
$5,500,000
10/09/25
3
3
2,330
360 Sunkist Ln, Los Altos, CA
0.41
Single-Family Home
$5,760,000
08/05/26
4
3
1,992
145 El Monte Ct, Los Altos, CA
0.17
Single-Family Home
$4,400,000
12/09/25
3
2
1,856

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
648 Spargur Dr, Los Altos, CA 94022
0.04
$6,000,000
4
3
2,948
Recently Sold
667 Jay St, Los Altos, CA 94022
0.05
$9,555,000
6
5.5
5,342
Recently Sold
641 Spargur Dr, Los Altos, CA 94022
0.07
$7,827,800
5
4.5
6,308
Off Market
677 Spargur Dr, Los Altos, CA 94022
0.11
$5,732,300
4
4.5
3,623
Off Market
643 Almond Ave, Los Altos, CA 94022
0.08
$5,455,300
3
2
2,467
Off Market
675 Almond Ave, Los Altos, CA 94022
0.10
$4,565,900
4
2.5
2,300
Off Market
1111 El Monte Ave, Mountain View, CA 94040
0.17
$3,746,800
3
2
1,878
Off Market
1221 Springer Rd, Mountain View, CA 94040
0.16
$3,631,600
4
3
1,850
Off Market
1797 Pilgrim Ave, Mountain View, CA 94040
0.19
$2,862,000
3
1
974
Recently Sold
1600 Don Ct, Mountain View, CA 94040
0.20
$3,498,000
3
2
1,619
For Sale
1762 Pilgrim Ave, Mountain View, CA 94040
0.21
$3,350,000
4
2
1,960
For Sale

Local Information

  • Map ViewExplore the area around 643 Jay St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1950
0.46 acre lot
1,408 sqft
$4,190/sqft
2 Car Garage

About this House

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.
643 Jay St, Los Altos, CA 94022 is a 5 bedroom, 3 bathroom, 1,408 sqft single-family home built in 1950. It last sold for $5,900,000 on Feb 17, 2026 (18% above the $4,995,000 asking price). This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $5,880,100.
Last check for updates: about 21 hours ago
Listed by Owen Halliday 01453658, (650) 492-0062
Christie's International Real Estate Sereno, (650) 947-2900
Bought with: Xin Jiang 01961451, (650) 283-8379, Compass, (650) 323-1111
Source: MLSListings Inc, MLS#ML82031048

Home Details for 643 Jay St

Interior Features

Interior Details
Number of Rooms: 2Types of Rooms: Dining Room, Family Room
Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 3Number of Bathrooms (full): 2Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 1408 Square Feet
Appliances & Utilities
Utilities: Public Utilities, Water Public
Heating & Cooling
Heating: Central Forced AirNo CoolingAir Conditioning: NoneHeating Fuel: Central Forced Air
Fireplace & Spa
Number of Fireplaces: 2Fireplace: Living Room, Other, Wood Burning
Gas & Electric
Gas: PublicUtilities
Windows, Doors, Floors & Walls
Flooring: Carpet, Other
Levels, Entrance, & Accessibility
Stories: 1Floors: Carpet, Other

Exterior Features

Exterior Home Features
Roof: WoodPatio / Porch: Balcony/PatioFencing: Back YardOther Structures: OtherExterior: Back Yard, FencedFoundation: Concrete Perimeter, Slab
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2No CarportHas a GarageHas an Attached GarageParking Spaces: 2Parking: Attached,Garage Door Opener
Water & Sewer
Sewer: Public Sewer
Farm & Range
Not Allowed to Raise Horses

Property Information

Year Built
Year Built: 1950
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence, ResidentialArchitecture: Ranch
Building
Not a New ConstructionNot Attached Property
Property Information
Condition: FixerParcel Number: 17020056

Price & Status

Price
List Price: $4,995,000Price Per Sqft: $4,190/sqft

Active Status

MLS Status: Sold

Media

Location

Direction & Address
City: LosAltos
School Information
Elementary School: AlmondElementary_1Elementary School District: LosAltosElementaryJr High / Middle School: ArdisGEganIntermediateHigh School: LosAltosHigh_1High School District: MountainViewLosAltosUnionHighWalk Score: 34

Building

Building Area
Building Area: 1408

Lot Information

Lot Area: 0.46 acres

Listing Info

Special Conditions: Standard

Offer

Listing Agreement Type: ExclusiveRightToSell

Miscellaneous

Mls Number: ML82031048

Price and Tax history

DateEventPrice
Feb 17, 2026
Source: MLSListings Inc #ML82031048
Sold
$5,900,000
Jan 23, 2026
Source: MLSListings Inc #ML82031048
Pending
$4,995,000
Jan 14, 2026
Source: MLSListings Inc #ML82031048
Listed For Sale
$4,995,000

Market trends in Los Altos

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$4.42M
$108KMoM
Sale-to-List Price
—
Price per sq ft
$1.86K
$36MoM
Available listings
43
4MoM

Around this home

What Locals Say about Los Altos

At least 186 Trulia users voted on each feature.

  • 96 % Say it's dog friendly

  • 88 % Say parking is easy

  • 88 % Say car is needed

  • 81 % Say people would walk alone at night

  • 78 % Say it's quiet

  • 76 % Say yards are well-kept

  • 75 % Say there's holiday spirit

  • 73 % Say it's walkable to grocery stores

  • 68 % Say they plan to stay for at least 5 years

  • 64 % Say it's walkable to restaurants

  • 64 % Say kids play outside

  • 60 % Say neighbors are friendly

  • 56 % Say there's wildlife

  • 49 % Say there are community events

  • 42 % Say there are sidewalks

  • 16 % Say streets are well-lit

Sourced by Trulia users. Learn more about our methodology.
  • Jlewis0509
    "Very small town, neighborly vibes as you peruse these streets. All of the big city appeal is just minutes away "
    0
    Flag
  • Vikas Kochhar
    "You have to be mobile with your own transport. The public transport is almost non existent. Fremont ave can can be a pain at times"
    0
    Flag
  • Mwilcove
    "Green and beautiful! No street lights or sidewalks and my mailbox is down a quaint lane. Close to multiple coffe shops and grocery stores. "
    0
    Flag
  • Marianne Griffiths
    "Farmers Market Wine Festival Art Festival Holiday Lights parade Friday Night Live Music St Patrick’s Day Beer Crawl "
    1
    Flag
  • August
    "This is the ideal neighborhood that is safe, and very much like at the 1950's feel with the charm but updated wonderfully. Grew up here and still the same. Pricey but a place to call home!"
    1
    Flag
  • Reinhardt Q.
    "Great place to walk dogs - wide, lightly traveled streets. Many have no sidewalks, making lots of planting areas that make cleanup so much easier. Relatively few lawns. "
    1
    Flag
  • Shea H.
    "Great neighborhood. Lived here for 18 years. Raised 2 kids at local public schools. We can walk to downtown. "
    4
    Flag
  • Eugenetamo
    "Drive mostly in order to visit from place to place — better and arguably easier to have a car. Would say that it feels very suburban."
    1
    Flag
  • Dr. M. H. D.
    "This is a wonderful neighborhood, friendly people, but no sidewalks to walk on or street lights at night. "
    0
    Flag
  • Keshav N.
    "Summertime art and wine festival, holiday events, library, In community center contribute to the special feel of Los Altos"
    1
    Flag
  • Erica H.
    "There are many family-friendly events in Los Altos & Mountain View all year round: Rock Back the Clock, Summer Nights, etc. "
    0
    Flag
  • Dr. M. H. D.
    "Conveniently located, train station 10min drive or 25min bike ride. Close to Sunnyvale, Cupertino, and Mountain View "
    1
    Flag
  • Viviane S.
    "My neighborhood sits in an amazing community with great helpful people. The parental engagement at schools is outstanding with so many great and educated volunteers. The best place to live "
    0
    Flag
  • vs
    "Los Altos is a very engaging family oriented community. Excellent schools, fun activities for the family(movie nights in the park, Pets parade, light parade, wine and art festival with children activities, farmers market, Easter egg hunt) to just name a few! It is an amazing safe city to raise a family! "
    0
    Flag
  • Craig A.
    "The area has great schools, is very safe, and is extremely dog friendly. Neighbors care about each other."
    0
    Flag
  • CL
    "Very family friendly, lots of space for kids to play around. Great downtown, also variety of great dining options. Easy access to 101/85/237/280"
    0
    Flag
  • ROwens
    "I don’t have to commute very far since I live and work in Los Altos but there is still a lot of traffic on the street. "
    0
    Flag
  • Craig A.
    "We have regular block parties where one family provides the main entree and all others bring salads, appetizers and dessert. It’s a very connected neighborhood."
    0
    Flag
  • Deborah A.
    "I am an at home mother. Traffic not too bad most of the time except during peak school hours. I ride my bike and walk as. I h as I can but do need my car for bigger shopping trips. "
    0
    Flag
  • Isabelle J.
    "It’s a great neighborhood to walk your dog. There are few very nice parks in Los Altos, people are very friendly and accepting of dogs. Also, 10 minutes away multiple state parks as well."
    0
    Flag
  • Debs.a
    "Lots of v happy dogs and proud owners. Dog park meet ups at high school and other parks. Green space galore! "
    0
    Flag
  • Wwildanger
    "Fourth of July block parties, friendly neighbors, Art and Wine Festival, Festival of Lights Parade, First Fridays down town"
    0
    Flag
  • Maggie W.
    "Proximity! Amazing markets, close to Stanford and neighboring Mountain View and Palo Alto, and so much more! Cannot wait for a dog park in Los Altos!!"
    0
    Flag
  • Libbieb
    "There are some families with kids, but also many older families whose kids have moved out. So not as many houses celebrate Halloween, etc. "
    0
    Flag
  • Pamharris54
    "I grew up in Los Altos, it’s still a great town, but it’s definitely changed. At times, I wish the pendulum could swing back to when things weren’t so stressful!! When I grew up here, we’d play outdoors and with all our neighbors!! I hardly know our neighbors, I’ve attempted to get to know them, but they pretty much stick to themselves!! "
    0
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  • Isabelle J.
    "Lived in this neighborhood for more than 15 years. Great schools, job opportunities, beautiful area, very safe, amazing weather but also expensive! "
    0
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  • Rich
    "big yards and lots of walking trails, businesses often put out bowls of water, and random people share doggy treats"
    0
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  • Andy J.
    "it's green, quiet and cosy enough to escape and enjoy the best of California has to offer from weather, "
    0
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  • Isabelle J.
    "I am originally from Paris and have lived in this neighborhood for 17 years. My family and I love it. Now that the kids are going to college we thought of leaving the area because it’s quite expensive but it is also very safe, the weather is amazing and the community is very nice. Plus there’re lots of natural preserves and the sea close by as well as everything you need in the towns and city. Business is booming in the Silicon Valley... makes it tough to leave!"
    0
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  • Karina S.
    "Well established area with awesome neighbors, and perfect combination of modern and historic architecture. "
    0
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  • Neil S.
    "Quite, peaceful,friendly and safe. Location is in ideal climate zone. Freeway accessibility and foremost outstanding eateries."
    0
    Flag
  • Cjsaaj
    "It’s a very quiet safe neighborhood. We are close to the walking trails. The school district is amazing!"
    1
    Flag

LGBTQ Local Legal Protections

Based on information from the MLSListings MLS as of 2026-09-16 00:49:35 PDT. 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.

Frequently asked questions about 643 Jay St

  • What is 643 Jay St estimated to be worth?
    Trulia's estimated value for 643 Jay St in Los Altos, CA is $5,880,100.
  • What is the price history for 643 Jay St?
    643 Jay St in Los Altos, CA last sold for $5,900,000 in February 2026.
  • Is Los Altos a buyer's or seller's market?
    Los Altos is currently a seller's market, based on recent for-sale activity.
  • What's the median sale price in Los Altos?
    The median sale price in Los Altos is $4.42M. That is down $108K from the prior month.
  • Does 643 Jay St have a yard?
    Yes, 643 Jay St in Los Altos, CA has a yard.
  • How big is the lot at 643 Jay St?
    The lot at 643 Jay St in Los Altos, CA is about 0.46 acres (19,900 sq ft).

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Off Market Homes Near 643 Jay St

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