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4321 Edison St

San Mateo, CA 94403
  • $3,595,000
  • STATUS: Active
  • ON SITE: 8 Days
  • ID#: ML82063527
UPDATED: 39 min ago
$3,595,000
  • 8
    BEDS
  • 0.22
    ACRES
  • 9
    BATHS
  • 0
    1/2 BATHS
  • 3,839
    SQFT
  • $936
    $/SQFT
Neighborhood:
Type:
Single-Family Home
Built:
1949
County:

School Ratings & Info

Listed by Patrick Lam of CENTURY 21 Masters: 415-710-3704.

Description

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!

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© 2026 MLSListings Inc. Based on information from MLSListings MLS as of 2026-10-12T10:18:50.853. Data is updated hourly. 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. DX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or Ben Dodge | Keller Williams Realty - Silicon Valley.

Licensed in the State of California.
Website powered by BoomTown.
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4321 Edison St San Mateo, CA 94403

  • Price: $3,595,000
  • Status: Active
  • On Site: 8 Days
  • Updated: 39 min ago
  • ID#: ML82063527
8
Beds
9
Baths
0
½ Baths
0.22
Acres
3,839
SQFT
$936
$/SQFT
1949
Built
Neighborhood:
Westwood Knolls Etc.
County:
San Mateo
Area:
Westwood Knolls Etc.
Property Description
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!
Exterior Features

Building Type Detached Construction Type StoneWood Fencing OtherWood Foundation Concrete Perimeter and Slab Garage Max Spaces 2 Garage Min Spaces 2 Garage Parking Attached GarageEnclosedParking AreaRoom for Oversized Vehicle Lot Description Grade - Sloped DownViews Parking Spaces 10 Pool YN No Roof Flat / Low PitchShingle Style ContemporaryModern / High Tech View BayMountainsCity Lights Yard Grounds Back YardBalcony / PatioBBQ AreaDeckFencedSprinklers - Lawn

Interior Features

Additional Rooms Formal Entry Bathroom Stall Shower - 2+TileUpdated Bath Bedrooms More than One Bedroom on Ground FloorMore than One Primary BedroomMore than One Primary Bedroom on Ground FloorPrimary Suite / Retreate - 2+ Cooling Multi-Zone Dining Room Breakfast BarDining Area Family Room Separate Family Room Fireplace Yn Yes Fireplaces Dual See ThruLiving RoomOther Flooring HardwoodTileVinyl / Linoleum Heating Central Forced AirHeat PumpHeating - 2+ Zones Kitchen Features 220 Volt OutletCountertop - QuartzDishwasherGarbage DisposalHood Over RangeMicrowaveOven Range - ElectricRefrigerator Laundry Gas HookupWasherTub / SinkDryer Structure Sq Ft 3839

Property Features

Accessibility Features None Additional Listing Info Not Applicable Amenities Skylight City Limits Yes City Name San Mateo Cross Street 43rd Ave Energy Saving Features SkylightThermostat ControllerDouble Pane Windows Hoa YN No Horse Property YN No Incorporated No Lot Size Area Maximum 9496.00 Property Sub Type Single Family Home Security Features Closed Circuit Monitoring (24-hour) Sewer Septic Sewer - Public Sq Ft Source Other Utilities Individual Electric MetersIndividual Gas MetersPublic UtilitiesNatural Gas Water Public Zoning R10006

Listed by Patrick Lam of CENTURY 21 Masters: 415-710-3704.



© 2026 MLSListings Inc. Based on information from MLSListings MLS as of 2026-10-12T10:18:50.853. Data is updated hourly. 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. DX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but is not guaranteed accurate by the MLS or Ben Dodge | Keller Williams Realty - Silicon Valley.

Licensed in the State of California.
Website powered by BoomTown.
 
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Ben Dodge | Keller Williams Realty - Silicon Valley
2110 S Bascom Ave Ste 101
Campbell CA, 95008

Listed by Patrick Lam of CENTURY 21 Masters: 415-710-3704.