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4321 Edison
ACTV
$3,595,000
List Price
8
Bedrooms
—
Bathrooms
3,839
Sq Ft
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!
| LIST_PRICE | 3595000 |
|---|---|
| DCID | 5CFC49211A555833E0631501030A0E4D |
| BEDROOMS_TOTAL | 8 |
| LONGITUDE | -122.2934 |
| STREET_NUMBER | 4321 |
| MLS_STATUS | ACTV |
| COUNTY_OR_PARISH | San Mateo |
| SQFT | 3839 |
| LISTING_ID | ML82063527 |
| DISPLAY_PRICE | 3595000 |
| REPORT_DISPLAY_PRICE | 3595000 |
| SOURCE_MLS | MLSLISTINGS |
| STATE_OR_PROVINCE | CA |
| CITY_STATE_ZIP | San Mateo, CA 94403 |
| PARCEL_NUMBER | 042-262-010 |
| POSTAL_CODE | 94403 |
| DAYS_ON_MARKET | 22 |
| STREET_DIR_PREFIX | — |
| YEAR_BUILT | 1949 |
| STREET_NAME | Edison |
| SRCHPRICE | 3595000 |
| PROPERTY_TYPE | RE |
| HOA_DISPLAY | — |
| PHOTO_VIRTUAL_TOUR | — |
| GAR_DISPLAY | / |
| LOT_SQFT | 9496 |
| BATHS_DISPLAY | — |
| ACRES | 0.218 |
| ALLLIST.DCID | 5CFC49211A565833E0631501030A0E4D |
| RAW_STATUS | ACTV |
| CITY | SAN MATEO |
| STREET_ADDRESS | 4321 Edison |
| LATITUDE | 37.52699 |
| BUILDING_TYPE | Detached |
Details fetched: October 25 2026 11:04PM
First seen: 2026-10-25 22:51 UTC
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Last updated: 2026-10-25 22:51 UTC
Change History (0)
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