399 Hawthorne Avenue, Los Altos, CA 94022 (MLS # ML82066177)
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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.
| DAYS ON MARKET | 1 | LAST UPDATED | 10/30/2026 |
|---|---|---|---|
| YEAR BUILT | 2026 | COMMUNITY | 699 - Not Defined |
| GARAGE SPACES | 2.0 | COUNTY | Santa Clara |
| STATUS | Active | PROPERTY TYPE(S) | Single Family |
| ADDITIONAL DETAILS | |
| AIR | Central Air |
|---|---|
| AIR CONDITIONING | Yes |
| AREA | 699 - Not Defined |
| FIREPLACE | Yes |
| GARAGE | Attached Garage, Yes |
| HEAT | Heat Pump |
| LOT | 10045 sq ft |
| LOT DIMENSIONS | 10044 |
| PARKING | Attached |
| SEWER | Public Sewer |
| STORIES | 2 |
| WATER | Public |
TOTAL MONTHLY PAYMENT
| SATELLITE VIEW |
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