Back to home search
Active · MLS #ML82063527

4321 Edison ST

San Mateo, CA 94403

$3,595,000
Message Anton
8Bedrooms
9Bathrooms
3,839Square feet
1949Year built

About this home

Sophisticated modern living in desirable Westwood Knolls! Situated on a quiet cul-de-sac, extensively renovated and expanded, this exceptional residence offers approx. 3,839 sq. ft. of living space with 8BD/9BA, including a newly constructed two-story rear extension, on an expansive 9,496 sq. ft. lot. The main residence features dramatic 12-ft ceilings, White Oak hardwood floors, an electric fireplace, and accordion glass doors opening to a view deck with breathtaking city and Bay views. The chefs kitchen showcases a waterfall island, quartz countertops, sleek cabinetry, and high-end Thermador appliances, including a built-in wine refrigerator. The main level offers 5BD/6BA, including 4 en-suites, plus a sunroom and family room with fireplace and wet bar. Additional highlights include multi-zone A/C and heating, ceiling speakers, and 3 decks. The downstairs legal ADU (4321A Edison St) offers separate entrance, 3BD/3BA, including 2 en-suites, an open living area, kitchen with eat-in island, sunroom, and a spacious deck. 2-car garage, tankless water heaters, plus an oversized lot with parking for 10+ vehicles, RV, & boat/trailer. Conveniently located near Hillsdale shopping, dining, Caltrain, and major freeways. A rare combination of space, views, modern luxury, and versatility!

Property type
Single Family Residence
Lot size
9,496 sq ft
Status
Active

Upcoming open houses

Tuesday, October 6 at 5:00 PM – 6:00 PM PT

Thursday, October 8 at 5:00 PM – 6:00 PM PT

Thursday, October 8 at 5:00 PM – 6:00 PM PT

Saturday, October 10 at 2:00 PM – 4:00 PM PT

Sunday, October 11 at 2:00 PM – 4:00 PM PT

Listed by Patrick Lam, CENTURY 21 Masters. Source: MLSL. MLS #ML82063527.

Updated 10/5/2026, 2:55:18 PM PT.

MLSListings Inc. reserves the right to change details in this publication without notice. Although every precaution has been taken in the preparation of this document, MLSListings assumes no responsibility for errors or omissions. The publication and features described in this document are subject to change without notice.