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$4,990,000
3 Days On Site

399 Hawthorne Avenue
LOS ALTOS, CA 94022

For Sale|Single Family Residence|Active
5
Beds
5.5
Total Baths
5
Full Baths
1
Partial Bath
4,281
SqFt
$1,166
/SqFt
2026
Built
County:
Santa Clara
Listed by of Axis Elite Team of Aspire Homes (415) 734-8513
399 Hawthorne Avenue399 Hawthorne Avenue399 Hawthorne Avenue
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Explore the potential of this approx. 10,044 SF flat lot in sought-after Los Altos, offered as land only for $4.99M or as a completed new construction home for $8.5M. The proposed two-story residence offers approx. 3,086 SF, 3 bed and 3.5 bath, plus an attached approx. 1,195 SF ADU with 2 bed and 2 bath, totaling approx. 4,281 SF of living space. The proposed plan features a dramatic two-story foyer and an open layout where the kitchen with large island, dining and living areas flow to an expansive rear deck for indoor-outdoor entertaining. The main level also offers a den with closet for a home office or guest room. The attached ADU has its own entrance, living room, kitchen, laundry, a primary suite with walk-in closet and private bath, plus a second bedroom and bath, ideal for multigenerational living or guests. Close to downtown Los Altos Village and its shops, restaurants and cafés, with easy commute access and acclaimed Los Altos schools. Buyers can personalize select design elements or enjoy the convenience of a completed home, which includes a builder warranty. Proposed plans, renderings, square footage and specifications are subject to change and final approval.

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Listing Snapshot
Price 
$4,990,000
Days On Site 
3 Days
Bedrooms 
5
Inside Area (SqFt) 
4,281 sqft
Total Baths 
5.5
Full Baths 
5
Partial Baths 
1
Lot Size 
0.23 Acres
Year Built 
2026
MLS Number 
ML82066177
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
3 days agoListing updated with changes from the MLS
3 days agoListing first seen on site
General Features
Acres 
0.23
Attached Garage 
Yes
Cross Street 
El Monte Avenue
Disclosures 
Natural Hazard Disclosure
Garage 
Yes
Garage Spaces 
2
Number Of Stories 
2
Parking 
Attached
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
SqFt Total 
4281
Water Source 
Public
Zoning 
R1
Interior Features
Cooling 
Central Air
Fireplace 
Yes
Fireplace Features 
Other
Heating 
Heat Pump
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Exterior Features
Roof 
CompositionShingleOther
Community Features
School District 
Mountain View-Los Altos Union High
Schools
School District
Mountain View-Los Altos Union High
Elementary School
Unknown
Middle School
Unknown
High School
Unknown
Listed by of Axis Elite Team of Aspire Homes (415) 734-8513



The data relating to real estate for sale on this display comes in part from the Internet Data Exchange program of the MLSListings™ MLS system. Real estate listings held by brokerage firms other than eXp Realty are marked with the Internet Data Exchange icon and detailed information about them includes the names of the listing brokers and listing agents. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Copyright 2026, MLS Listings, Inc..
Last checked: 2026-11-02 09:26 PM UTC

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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