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399 Hawthorne AvenueLos Altos, CA 94022

For Sale

$4,990,000

Smart Buyer Rebate $49,900

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.

Listed by Axis Elite Team

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Aspire Homes

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4157348513

Last updated October 30, 2026

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Source: MLSL #ML82066177

Listing Facts

  • TypeSingle-family
  • NeighborhoodNorth Los Altos
  • Bedrooms5
  • Bathrooms5.5
  • Days on Prevu1
  • Size4,281 sqft
  • Price per sqft$1,166

Amenities

  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

10/30/2026
Listed by Aspire Homes
$4,990,000
  1. 10/30/2026$4,990,000
    Listed by Aspire Homes

Property Details for 399 Hawthorne Avenue

Exterior

Construction

  • Roof: Composition, Shingle, Other
  • Stories: 2
  • Stories Total: 2
  • Year Built: 2026

Measurements

  • Building Area Total: 4,281
  • Lot Size Acres: 0.23
  • Lot Size Area: 10,044
  • Lot Size Source: Other
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 170-35-029

Interior

Features

  • Fireplace Features: Other
  • Fireplace: Yes

Measurements

  • Living Area: 4,281

Rooms

  • Bathrooms Full: 5
  • Bathrooms Half: 1
  • Bedrooms Total: 5

Other

Location

  • City Region: North Los Altos

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Attached

Schools

Elementary School

  • Elementary School District: Los Altos Elementary

High School

  • High School District: Mountain View-Los Altos Union High

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Heat Pump
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 5.5 bathrooms in this single-family home at 399 Hawthorne Avenue.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 399 Hawthorne Avenue.

How does 399 Hawthorne Avenue compare to other single-family homes in North Los Altos?

This single-family home is listed 4% above the average price for single-family homes in North Los Altos and has been on the market for 126 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,281 sqft.

399 Hawthorne Avenue is a 5-bedroom, 5.5-bath single-family home for sale in LOS ALTOS CA 94022. On Prevu for 1 days at $4,990,000. This property features 4,281 square feet of living space, located in North Los Altos. The median listing price for single-family homes in this area is $2,990,000. The home offers air conditioning and parking. View other single-family home listings in Los Altos.

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 Prevu Real Estate are marked with the Internet Data Exchange and detailed information about them includes the names of the listing brokers and listing agents. Based on information from the MLSListings MLS as of 10/30/2026. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Data Services by Constellation Data Labs. IDX display powered by Prevu Real Estate. Copyright 2026 MLSListings Inc. All rights reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.