399 Hawthorne Avenue Los Altos, CA $ 4,990,000
399 Hawthorne Avenue
$ 4,990,000
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399 Hawthorne Avenue

Los Altos, CA, 94022
$ 4,990,000
Bedrooms5 Baths5.1 Sq 4,281

Monthly Estimate*

$ 34,465

399 Hawthorne Avenue, Los Altos, CA 94022 - Image 1
399 Hawthorne Avenue, Los Altos, CA 94022 - Image 2
399 Hawthorne Avenue, Los Altos, CA 94022 - Image 3
399 Hawthorne Avenue, Los Altos, CA 94022 - Image 4

Single Family Home for sale in Los Altos, CA

for $4,990,000 with 5 bedrooms and 5 full baths, 1 half bath. This 4,281 square foot home was built in 2026 on a lot size of 0.23.

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 caf s, 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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Single Family Active

Price

$ 4,990,000

Bedrooms

5

Full Bath

5

Half Bath

1

Property Type

Single Family

Taxes

$ 0

Style

Detached

Lot Size

0.23

Year Built

2026

Town/City

Los Altos

County/Region

Santa Clara

MLS | Web ID

ML82066177

Features
General
Living Area 4281
Sewer Public Sewer
Heating Heat Pump
Cooling Central Air
Roof Composition Shingles Other
Zoning R1
Garage Spaces 2
Year Built 2026
Stories Count 2
Levels Two Story
Property Subtype Detached
County Santa Clara
Property Type Residential
HOA false
Garage Y/N true
Full Baths 5
Status Active
City Los Altos
High School District Mountain View-Los Altos Union High
MLS Area Listing
Lot Size Square Feet 10044
Standard Status Active
Elementary School District Los Altos Elementary
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Interior
Interior Amenities Dining Area
Fireplace Features Other
Air Conditioning Y/N true
Heating Y/N true
Fireplace Y/N true
Total Bedrooms 5
Total Baths 6
1/2 Baths 1
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Exterior
Parking Features Attached
Water Source Public
Lot Size Area 10044
Foundation Details Slab
Building Area Total 4281
Lot Size Acres 0.23
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* Excluded Features
List By
Aspire Homes

Broker

listing@axisrealtyus.com

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Affordability Calculator

$34,465
Per Month
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Monthly Principal & Interest
$34,465
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Default based on a 30-year fixed rate of 7.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
0 Elementary School
0 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
10/30/2026$4,990,000 Listed Price

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399 Hawthorne Avenue, Los Altos, CA, 94022 is a Single Family Home for sale at $4,990,000 with 4,281 sqft and a lot size of 0.23. 399 Hawthorne Avenue has 5 bedrooms, 5.1 baths, and was built in 2026. The property's zip code is 94022 which is in Los Altos, CA