21888 Blue Oaks

Los Altos Hills, CA, 94022

For Sale $28,900,000

6beds
7.5baths
9,373sqft
8.16acres

Welcome to 21888 and 21886 Blue Oaks Place, an extraordinary custom estate built/designed by PPG. Perched on a private, sun-filled knoll, this serene retreat offers remarkable privacy and tranquility, close-in (5 minutes from 280), yet free from highway noise. Designed in a timeless California Refined Living style, the property spans approximately 9373 sq ft (including garages, main house and ADU), across 2 separate but adjacent parcels totaling approximately 8.16 acres. The main residence features 6 beds/6.5 baths, with flexibility for a 7th ensuite bedroom, or live in quarters, and area for a potential media/bonus room. The 3 car garage adds convenience & functionality to the main house, while a separate studio/ADU and 2 car garage is located on the adjacent property. Flooded with natural light throughout the day, the home enjoys sweeping views of the Western hills. One of the property's most compelling features is its potential to become a true family compound. With a total allowable MFA of 7,595 and MDA of 11,430 at the 21886 parcel, there is an opportunity to build a substantial second residence, adjacent to the existing ADU and two-car garage. There is also expansion potential remaining at 21888 if desired. Los Altos Schools: Gardner Bullis, Egan, and Los Altos High School

Listing agent:

License #

Christie's International Real Estate Sereno

Identification

Street Address21888 Blue Oaks

City / State / ZIPLos Altos Hills, CA 94022

Listing StatusFor Sale

List Price$28,900,000

MLS NumberML82059045

Property TypeResidential Single Family Residence

Key Stats

Bedrooms6

Bathrooms (Full / Half)7 full, 1 half

Living Area (Sq Ft)9,373 sq ft

Lot Size (Acres / Sq Ft)8.16 acres

Year Built2015

Price Per Sq Ft$3,083.32

Interior

FireplaceLiving Room

Cooling / ACCentral Air

FlooringCarpet, Stone, Wood

AppliancesDishwasher, Electric Oven, Gas Cooktop, Disposal, Ice Maker, Microwave, Refrigerator, Range Hood, Vented Exhaust Fan

Notable Interior FeaturesBreakfast Bar, Breakfast Area, Utility Room, Walk In Closets

Exterior & Property

Pool / SpaHeated, In Ground, Pool Cover

Garage / Parking Spaces5 spaces

Stories / Levels2 stories

Location

Neighborhood / Community699 - Not Defined

CountySanta Clara

Geo-Coordinates37.35412927, -122.14647365

Listing Meta

Days On Market1 day

Date ListedAugust 26, 2026

Listing AgentMarc Roos — Christie's International Real Estate Sereno

Additional Media

Virtual Tour / Videohttp://www.21888BlueOaksPlace.com/mls/224426746

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21888 Blue Oaks is a Residential Single Family Residence property located in Los Altos Hills, California, featuring a 8.160 acre lot, 9,373 sqft, 6 bedrooms, 7 full, 1 half baths, MLS #ML82059045.

Based on information from one of the following Multiple Listing Services: CRMLS. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by Trestle and is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. All data, including all measurements and calculations of area, is obtained from various sources, is approximate, and has not been, and will not be, verified by broker or MLS. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. All information should be independently reviewed and verified for accuracy. No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of such measurements.

Data last modified: 2026-09-13 18:04:22