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310 Old Spanish Trail, 
Portola Valley, CA 94028

$3,888,888

3

Beds

3

Baths

3,200

Sq Ft

Single Family

Virtual Tour

Active

Listed by

Tim Mckeegan

Terrace Associates

650-369-7331

Last updated:

November 1, 2025, 01:22 PM

MLS#

ML81992906

Source:

CRMLS

About This Home

310 Old Spanish Trail

This Custom House was built in 2005/06 and was originally designed as a 5br/4.5ba/FR/DR/LR/ and with the option to have an attached (with separate entrance) in-law unit (ADU) and an oversized 3 Car Garage of approximately 4,500sqft. on over one acre. Seller has also furnished another preliminary plan sited for a separate ADU at the lower portion of the lot that would need an additional approval from the appropriate authorities. Seller at "buyers option" will complete any of the unfinished areas '"upon mutual agreement" as to the finishes best suited for them. Pictures of the the unfinished Rooms have been "Virtually Staged"

Home Facts

Single Family

3 Baths

3 Bedrooms

Built in 2006

Price Summary

3,888,888

$1,215 per Sq. Ft.

MLS #:

ML81992906

Last Updated:

November 1, 2025, 01:22 PM

Added:

3 month(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

3

Bathrooms

Total Bathrooms:

3

Full Bathrooms:

2

Interior

Living Area:

3,200 Sq. Ft.

Structure

Structure

Architectural Style:

Ranch

Building Area:

3,200 Sq. Ft.

Year Built:

2006

Lot

Lot Size (Sq. Ft):

46,474

Finances & Disclosures

Finances

Price:

$3,888,888

Price per Sq. Ft:

$1,215 per Sq. Ft.

Source:CRMLS
Based on information from California Regional Multiple Listing Service, Inc. as of November 8, 2025 . This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. The information provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified.

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By clicking Contact I agree a Coldwell Banker Agent may contact me by phone or text message including by automated means and prerecorded messages about real estate services, and that I can access real estate services without providing my phone number. I acknowledge that I have read and agree to the Terms of Use and Privacy Notice.