
San Mateo, California 94403
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 is new construction or fully renovated.
The property has undergone an extensive renovation and expansion, including a newly constructed two-story extension. It features a modern chef's kitchen with high-end Thermador appliances, updated multi-zone HVAC systems, tankless water heaters, and contemporary finishes like White Oak floors and quartz countertops. The condition is mint and reflects a recent, high-quality overhaul.
The inclusion of a legal, downstairs 3-bedroom, 3-bathroom ADU with a separate entrance provides exceptional flexibility for multi-generational living or significant rental income.
Extensively renovated with 12-foot ceilings and accordion glass doors, the residence offers a sophisticated aesthetic complemented by breathtaking panoramic views of the Bay and city lights.
The oversized 9,496 sq. ft. lot is a rarity in San Mateo, providing a 2-car garage plus additional parking for over 10 vehicles, including dedicated space for an RV and boat.
Living area discrepancy between mls listing and other public or private record. mls listing living area = 3839, other record living area = 2502. Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 8, other record bedroom count = 5.
With 8 bedrooms and 9 bathrooms configured within 3,839 sq. ft., the floor plan may feel segmented, potentially resulting in smaller individual room dimensions than expected for this price point.
At a list price of $3.595M, the property is positioned at the top of the Westwood Knolls market, which may challenge appraisal values and limit the pool of qualified buyers.
No exterior & parking available.
No sensitive facilities data found.
| Feature | Subject | Average Home |
|---|---|---|
| Beds | 8.0 | 3.1 |
| Baths | 9.0 | 2.0 |
| Square foot | 3,839 | 1,743.298 |
| Lot Size | 9,496 | 6,079.649 |
| Price | $3.60M | $2.26M |
| Price per sq ft | $936 | $1.4K |
| Built year | 1949 | 1952 |
| HOA | $0 | $387 |
| Days on market | 21 | 33 |
Oct 3, 2026
$3,595,000
Initial Listing
Dec 6, 2017
$1,370,000
Public Record