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$11,500,000

  • For Sale
  • Active
  • Single Family
  • 4 Beds
  • 3 Full Baths
  • 3,421 Sq. Ft.
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Stunning vistas of the hills and bay in this once in a lifetime opportunity to own one of the largest lots in Palo Alto with 12.55 acres in Palo Alto Open Space with a Portola Valley mailing address. Located on an exclusive private road the property awaits a buyer wanting to create a new estate or remodel the existing mid-century style home with expansive hill views. Large living room with high ceilings and separate dining room have breathtaking views. Family room/solarium is off the eat-in kitchen with island. Two bedroom suites one being the large primary bedroom and two bedrooms that share a Jack and Jill bathroom. Garage was converted into a studio plus large workshop and storage. Separate two bedroom guest cottage with living room with fireplace and sunny deck with views of Windy Hill. Amenities are sunny Pool surrounded by gardens, Tennis court, Greenhouses and sheds for storage, and a walking trail on the property takes one to breathtaking bay views. The property backs up to the Arastradero Preserve. The location is very quiet and private but close to Ladera Shopper, Robert's Market, and the 280 corridor to Silicon Valley and Stanford University, Stanford Shopping and Medical Centers. The bay view photos were from the trails. Palo Altos Schools & utilities.

Full Property Details for 640 Los Trancos Rd

General

  • Price: $11,500,000
  • Status: Active
  • Type: Single Family
  • Source: RE_Infolink
  • MLS ID: ML81999832
  • Updated: 11/11/2025
  • Added to Site: 296 day(s) ago

Interior

  • Rooms/Areas: Finished Basement, Unfinished Basement, Workshop
  • Fireplace(s): Living Room, Other
  • Flooring: Hardwood, Stone

Rooms

Bathrooms

  • Total Bathrooms: 3
  • Full Bathrooms: 3
  • Bathroom Features: Showers over Tubs (2 or More), Stall Shower

Bedrooms

  • Total Bedrooms: 4

Other Rooms

  • Family Room: Separate Family Room
  • Kitchen: Tile Countertop, Dishwasher, Hood over Range, Island with Sink, Microwave, Electric Oven/Range, Refrigerator, Skylight
  • Laundry: Inside, Washer / Dryer

Additional Information

  • Pool: Yes
  • Extras: Not Applicable

Parking

  • Parking Features: No Garage

Location

  • Area: Palo Alto Hills
  • County: Santa Clara
  • Cross Streets: Los Trancos Road

Heating & Cooling

  • Cooling Type: None
  • Heating Type: Heat Pump

Utilities

  • Sewer: Septic System Connected
  • Water: Public
  • Utility Description: Propane on Site, Public Utilities

Structural Information

  • Architectural Style: Ranch
  • Construction: Detached
  • Foundation: Concrete Slab
  • Roof: Composition, Elastomeric, Tar and Gravel
  • Disability Access: Grab Bars
  • Square Feet: 3,421
  • Year Built: 1959

Lot Features

  • Property View: Bay, City Lights, Hills
  • Lot Size (Acres): 12.55
  • Minimum Lot Size: 546678
  • Lot Size (Sq. Ft.): 546,678
  • Grounds/Landscape: Balcony / Patio, Deck , Storage Shed / Structure
  • Zoning: 0S
  • Lot Description: Grade Slopes Down, Grade Slopes Up, Private / Secluded, Views

Horse Property

  • Horse Facility Desc.: Unimproved
Buyer's Brokerage Compensation: Contact Listing Agent
Not binding unless confirmed by separate agreement among applicable parties.

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— 640 Los Trancos Rd —

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

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Schools serving 640 Los Trancos Rd

School District:Palo Alto Unified School District
NameGradesDistance
Lucille M. Nixon Elementary School
1711 Stanford Avenue, Stanford, CA 94305
K-53.8 mi
Ellen Fletcher Middle
655 Arastradero Road, Palo Alto, CA 94306
6-84.5 mi
Henry M. Gunn High School
780 Arastradero Road, Palo Alto, CA 94306
9-124 mi
Disclaimer: School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 640 Los Trancos Rd Get Price Alerts and Save Property

Date
Details
Price
Change
Source
11/11/2025
Price Reduced
$11,500,000
-10.85%
MLS
5/29/2025
Price Reduced
$12,900,000
-9.79%
MLS
3/28/2025
Listed
$14,300,000
—
MLS
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 640 Los Trancos Rd

Year
Property Taxes
Change
Tax Assessment
Change
2025
$4,077
4%
$254,238
2%
2024
$3,930
2%
$249,253
2%
2023
$3,867
1%
$244,366
2%
2022
$3,810
2%
$239,576
2%
2021
$3,731
2%
$234,879
1%
2020
$3,670
1%
$232,472
2%
2019
$3,624
2%
$227,914
2%
2018
$3,551
2%
$223,446
2%
2017
$3,486
—
$219,065
2%
2016
$3,469
1%
$214,770
2%
2015
$3,427
—
$211,545
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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NMLS#: 1598647

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640 Los Trancos Rd, Palo Alto, CA 94304 (MLS# ML81999832) is a Single Family property with 4 bedrooms and 3 full bathrooms. 640 Los Trancos Rd is currently listed for $11,500,000 and was received on March 28, 2025. This property is listed by Sue Crawford from our Menlo Park Office.Want to learn more about 640 Los Trancos Rd? Do you have questions about finding other Single Family real estate for sale in Palo Alto Hills? You can browse all Palo Alto Hills real estate or contact a Coldwell Banker agent to request more information.

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