4321 Edison Street San Mateo, CA $ 3,595,000
4321 Edison Street
$ 3,595,000
Recently Listed
Open House 10/6 5pm - 6pm
Share Save

4321 Edison Street

San Mateo, CA, 94403
$ 3,595,000
Bedrooms8 Baths9.0 Sq 3,839

Monthly Estimate*

$ 22,699

Listed by Patrick Lam, CENTURY 21 Masters, patricksold@gmail.com
4321 Edison Street, San Mateo, CA 94403 - Image 1
4321 Edison Street, San Mateo, CA 94403 - Image 2
4321 Edison Street, San Mateo, CA 94403 - Image 3
4321 Edison Street, San Mateo, CA 94403 - Image 4
4321 Edison Street, San Mateo, CA 94403 - Image 5
4321 Edison Street, San Mateo, CA 94403 - Image 6
4321 Edison Street, San Mateo, CA 94403 - Image 7
4321 Edison Street, San Mateo, CA 94403 - Image 8
4321 Edison Street, San Mateo, CA 94403 - Image 9
4321 Edison Street, San Mateo, CA 94403 - Image 10
4321 Edison Street, San Mateo, CA 94403 - Image 11
4321 Edison Street, San Mateo, CA 94403 - Image 12
4321 Edison Street, San Mateo, CA 94403 - Image 13
4321 Edison Street, San Mateo, CA 94403 - Image 14
4321 Edison Street, San Mateo, CA 94403 - Image 15
4321 Edison Street, San Mateo, CA 94403 - Image 16
4321 Edison Street, San Mateo, CA 94403 - Image 17
4321 Edison Street, San Mateo, CA 94403 - Image 18
4321 Edison Street, San Mateo, CA 94403 - Image 19
4321 Edison Street, San Mateo, CA 94403 - Image 20
4321 Edison Street, San Mateo, CA 94403 - Image 21
4321 Edison Street, San Mateo, CA 94403 - Image 22
4321 Edison Street, San Mateo, CA 94403 - Image 23
4321 Edison Street, San Mateo, CA 94403 - Image 24
4321 Edison Street, San Mateo, CA 94403 - Image 25
4321 Edison Street, San Mateo, CA 94403 - Image 26
4321 Edison Street, San Mateo, CA 94403 - Image 27
4321 Edison Street, San Mateo, CA 94403 - Image 28
4321 Edison Street, San Mateo, CA 94403 - Image 29
4321 Edison Street, San Mateo, CA 94403 - Image 30
4321 Edison Street, San Mateo, CA 94403 - Image 31
4321 Edison Street, San Mateo, CA 94403 - Image 32
4321 Edison Street, San Mateo, CA 94403 - Image 33
4321 Edison Street, San Mateo, CA 94403 - Image 34
4321 Edison Street, San Mateo, CA 94403 - Image 35
4321 Edison Street, San Mateo, CA 94403 - Image 36
4321 Edison Street, San Mateo, CA 94403 - Image 37
4321 Edison Street, San Mateo, CA 94403 - Image 38
4321 Edison Street, San Mateo, CA 94403 - Image 39
4321 Edison Street, San Mateo, CA 94403 - Image 40
4321 Edison Street, San Mateo, CA 94403 - Image 41
4321 Edison Street, San Mateo, CA 94403 - Image 42
4321 Edison Street, San Mateo, CA 94403 - Image 43
4321 Edison Street, San Mateo, CA 94403 - Image 44
4321 Edison Street, San Mateo, CA 94403 - Image 45
4321 Edison Street, San Mateo, CA 94403 - Image 46
4321 Edison Street, San Mateo, CA 94403 - Image 47
4321 Edison Street, San Mateo, CA 94403 - Image 48
4321 Edison Street, San Mateo, CA 94403 - Image 49
4321 Edison Street, San Mateo, CA 94403 - Image 50
4321 Edison Street, San Mateo, CA 94403 - Image 51
4321 Edison Street, San Mateo, CA 94403 - Image 52
4321 Edison Street, San Mateo, CA 94403 - Image 53
4321 Edison Street, San Mateo, CA 94403 - Image 54
4321 Edison Street, San Mateo, CA 94403 - Image 55
4321 Edison Street, San Mateo, CA 94403 - Image 56
4321 Edison Street, San Mateo, CA 94403 - Image 57
4321 Edison Street, San Mateo, CA 94403 - Image 58
4321 Edison Street, San Mateo, CA 94403 - Image 59
4321 Edison Street, San Mateo, CA 94403 - Image 60
4321 Edison Street, San Mateo, CA 94403 - Image 61
4321 Edison Street, San Mateo, CA 94403 - Image 62
4321 Edison Street, San Mateo, CA 94403 - Image 63
4321 Edison Street, San Mateo, CA 94403 - Image 64
4321 Edison Street, San Mateo, CA 94403 - Image 65
4321 Edison Street, San Mateo, CA 94403 - Image 66
4321 Edison Street, San Mateo, CA 94403 - Image 67
4321 Edison Street, San Mateo, CA 94403 - Image 68
4321 Edison Street, San Mateo, CA 94403 - Image 69
4321 Edison Street, San Mateo, CA 94403 - Image 70
4321 Edison Street, San Mateo, CA 94403 - Image 71
4321 Edison Street, San Mateo, CA 94403 - Image 72
4321 Edison Street, San Mateo, CA 94403 - Image 73
4321 Edison Street, San Mateo, CA 94403 - Image 74
4321 Edison Street, San Mateo, CA 94403 - Image 75
4321 Edison Street, San Mateo, CA 94403 - Image 76
4321 Edison Street, San Mateo, CA 94403 - Image 77
4321 Edison Street, San Mateo, CA 94403 - Image 78
4321 Edison Street, San Mateo, CA 94403 - Image 79
4321 Edison Street, San Mateo, CA 94403 - Image 80
4321 Edison Street, San Mateo, CA 94403 - Image 81
4321 Edison Street, San Mateo, CA 94403 - Image 82
4321 Edison Street, San Mateo, CA 94403 - Image 83
4321 Edison Street, San Mateo, CA 94403 - Image 84
4321 Edison Street, San Mateo, CA 94403 - Image 85
4321 Edison Street, San Mateo, CA 94403 - Image 86
4321 Edison Street, San Mateo, CA 94403 - Image 87
4321 Edison Street, San Mateo, CA 94403 - Image 88
4321 Edison Street, San Mateo, CA 94403 - Image 89
4321 Edison Street, San Mateo, CA 94403 - Image 90
4321 Edison Street, San Mateo, CA 94403 - Image 91
4321 Edison Street, San Mateo, CA 94403 - Image 92
4321 Edison Street, San Mateo, CA 94403 - Image 93
View a Virtual Tour

Single Family Home for sale in San Mateo, CA

for $3,595,000 with 8 bedrooms and 9 full baths. This 3,839 square foot home was built in 1949 on a lot size of 0.218.

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!

See more

Open House

10/6/2026 5:00 PM - 6:00 PM
10/10/2026 2:00 PM - 4:00 PM
10/11/2026 2:00 PM - 4:00 PM
4321 Edison Street San Mateo, CA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 3,595,000

Bedrooms

8

Full Bath

9

Property Type

Single Family

Taxes

$ 0

Style

Lot Size

0.218

Year Built

1949

Town/City

San Mateo

County/Region

San Mateo

MLS | Web ID

ML82063527

Days on Market

3

Features
General
Living Area 3839
Sewer Public Sewer
Heating Central Heat Pump
Utilities Natural Gas Available
Roof Flat Shingle
Appliances Dishwasher Disposal Microwave Refrigerator Range Hood Dryer Washer
Zoning R10006
Garage Spaces 2
Patio/Porch Features Deck
Architectural Style Contemporary Modern
Construction Materials Stone
Year Built 1949
View Bay City Lights Mountain(s)
Property Subtype Single Family Residence
Accessibility None
County San Mateo
New Construction false
Property Type Residential
HOA false
Attached Garage true
Garage Y/N true
Full Baths 9
Special Listing Conditions Standard
Status Active
Directions Cross Street: 43rd Ave
City San Mateo
High School District Other
MLS Area 699 - Not Defined
Lot Size Units Square Feet
Lot Size Square Feet 9496
Property Attached Y/N false
Standard Status Active
Occupancy Type Vacant
Year Built Source Assessor
Virtual Tour https://youtu.be/L_Lt5P1OLiM
Property Sub Type Additional Single Family Residence
See more
Interior
Interior Amenities Breakfast Bar
Flooring Tile Wood
Fireplace Features Living Room
Total Stories 1
Common Walls No Common Walls
Air Conditioning Y/N true
Heating Y/N true
Window Features Skylight(s)
Fireplace Y/N true
Laundry Features Gas Dryer Hookup
Total Bedrooms 8
Total Baths 9
See more
Exterior
Fencing Wood
Lot Features Sloped Down
Water Source Public
Total Parking 10
Lot Size Area 9496
Lot Size Acres 0.218
Lot Size Source Assessor
See more
* Excluded Features
List By
Patrick Lam

Listing Agent

Century 21 Masters

Broker

patricksold@gmail.com

Email

Affordability Calculator

$22,699
Per Month
100%
0%
0%
Monthly Principal & Interest
$22,699
Monthly Property Taxes
--
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save

Discover how much house you can afford

Your dream home may be within reach.

Learn More about how to save

The time to sell is now
THE TIME TO SELL IS NOW! What's my home worth?
Nearby
4827338 Elementary School
4827337 Middle School
Unknown High School High School
Pricing History
DatePricePrice ChangeDescription
10/4/2026$3,595,000 Listed Price

Map


See all

4321 Edison Street, San Mateo, CA, 94403 is a Single Family Home for sale at $3,595,000 with 3,839 sqft and a lot size of 0.218. 4321 Edison Street has 8 bedrooms, 9.0 baths, and was built in 1949. The property's zip code is 94403 which is in San Mateo, CA