4321 Edison Street, San Mateo, CA 94403
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4321 Edison Street, San Mateo, CA 94403
4321 Edison Street, San Mateo, CA 94403
4321 Edison Street, San Mateo, CA 94403
4321 Edison Street, San Mateo, CA 94403
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Amanda Abillano

Amanda Abillano

+1(925) 481-0055
Listed by Patrick Lam • CENTURY 21 Masters
$ 3,595,000
Est. payment /mo
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Open Sun 2PM-4PM

4321 Edison Street San Mateo, CA 94403

8 Beds

9 Baths

3,839 SqFt

Open House

Sun Oct 04, 2:00pm - 4:00pm

Tue Oct 06, 5:00pm - 6:00pm

Sat Oct 10, 2:00pm - 4:00pm

Sun Oct 11, 2:00pm - 4:00pm

UPDATED:

Key Details

Property Type Single Family Home

Sub Type Detached

Listing Status Active

Purchase Type For Sale

Square Footage 3,839 sqft

Price per Sqft $936

MLS Listing ID ML82063527

Bedrooms 8

Full Baths 9

HOA Y/N No

Year Built 1949

Lot Size 9,496 Sqft

Property Sub-Type Detached

Source Datashare MLSListings

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!

Location

State CA

County San Mateo

Interior

Heating Forced Air, Zoned, Heat Pump

Flooring Hardwood, Tile

Fireplaces Number 1

Fireplaces Type Living Room, Other

Fireplace Yes

Window Features Double Pane Windows

Appliance Dishwasher, Microwave

Laundry Dryer, Washer

Exterior

Garage Spaces 2.0

View Bay, City Lights, Mountain(s)

Private Pool false

Building

Story 1

Water Public

Architectural Style Contemporary

Schools

School District San Mateo Union High, San Mateo-Foster City Elementary

Bay East Association of Realtors
© 2026 BEAR, CCAR, bridgeMLS. This information is deemed reliable but not verified or guaranteed. This information is being provided by the Bay East MLS or Contra Costa MLS or bridgeMLS. The listings presented here may or may not be listed by the Broker/Agent operating this website.

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4321 Edison Street