New Listing
Open House LogoIn-Person: 10/07 5:00 PM - 6:00 PM
In-Person: 10/10 2:00 PM - 4:00 PM
$3,595,000
 $19,299 est/mo Sourced by Back At You

4321 Edison Street,San Mateo, CA 94403

San Mateo, CA 94403

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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!

Details

MLS #ML82063527
Listing TypeFor Sale
StyleHouse
Sub-TypeResale
StatusActive
Year1949
Days On Site1
Listing Provided ByCENTURY 21 Masters | Patrick Lam

Features

Bed(s)8
Bath(s) 9 Total
SQ Feet3,839
Garage2
Story(s)1
ZoningR10006
Acreage0.22
Property ViewYes

Interior

HeatingCentral, Heat Pump
Heating Yes / NoYes
Cooling Yes / NoYes
Interior FeaturesBreakfast Bar
Window FeaturesSkylights
AppliancesDishwasher, Disposal, Microwave, Refrigerator, Range Hood, Dryer, Washer
Fireplace Yes / NoYes

Exterior

RoofFlat, Shingle
Construction MaterialsStone
Lot FeaturesSloped Down
FencingWood

Parking

Attached Garage Yes / NoYes
Garage Yes / NoYes

Utilities

UtilitiesNatural Gas Available
SewerPublic Sewer

Area Information

StateCA
CountySan Mateo
CitySan Mateo
Zip Code94403
Area699 Not Defined
Listing VS Median (in 94403)
Price:
$3,595,000
low | high
Med:
$1,553,974
100% of Average
sqft:
3,839
low | high
Med:
1,296
100% of Average
$ / sqft:
$936
low | high
Med:
$1,255
15.931053233132% of Average
On site:
1
low | high
Med:
23
4.347826086957% of Average
Sourced by Back At You

Market Activity 94403

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Learn More About This Property

Open House
In-Person
10/07 5:00 PM - 6:00 PM
In-Person
10/10 2:00 PM - 4:00 PM
In-Person
10/11 2:00 PM - 4:00 PM
In-Person
10/16 5:00 PM - 6:00 PM
StateCA
CountySan Mateo
CitySan Mateo
Zip Code94403
Area699 Not Defined
Listing VS Median (in 94403)
Price:
$3,595,000
low | high
Med:
$1,553,974
100% of Average
sqft:
3,839
low | high
Med:
1,296
100% of Average
$ / sqft:
$936
low | high
Med:
$1,255
15.931053233132% of Average
On site:
1
low | high
Med:
23
4.347826086957% of Average
Sourced by Back At You
Listing Updated: October 4, 2026 at 2:16:03 PM PDT