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Single family home for sale at 4321 Edison St, San Mateo, CA 94403 | MLS# ML82063527 | Listing updated on 2026-10-04
Photo 1 of Single family home for sale at 4321 Edison St, San Mateo, CA 94403 | MLS# ML82063527 | Listing updated on 2026-10-04
Photo 2 of Single family home for sale at 4321 Edison St, San Mateo, CA 94403 | MLS# ML82063527 | Listing updated on 2026-10-04
Photo 3 of Single family home for sale at 4321 Edison St, San Mateo, CA 94403 | MLS# ML82063527 | Listing updated on 2026-10-04
Photo 4 of Single family home for sale at 4321 Edison St, San Mateo, CA 94403 | MLS# ML82063527 | Listing updated on 2026-10-04
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Listed by: Patrick Lam (415) 710-3704 DRE #01764668 | CENTURY 21 Masters (650) 689-5888

$3,595,000

Monthly Est:$17,894

  • Beds Icon8 Beds
  • Beds Icon
    9 Baths
  • Beds Icon3,839sqft

4321 Edison St, San Mateo, CA 94403

$17,894/moEst:

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  • Single Family Residence

  • Built in 1949

  • $-- HOA

  • 9,496 sqft lot

  • $936/sq.ft

Description

Sophisticated modern living in desirable Westwood Knolls! 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 deck, ideal for extended famil/flexible living. 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!

  • Houzeo last checked: 12 hours ago
  • Listing updated: October 4, 2026 at 4:21 am
  • Source: California Regional MLS-CA | MLS#: ML82063527 California Regional MLS-CA

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    1

  • County

    San Mateo County

  • City

    San Mateo

  • Neighborhood

    --

  • Year Built

    1949

  • HOA Fees

    -

  • Finished Area

    3,839 sqft

  • Lot Size

    9,496 sqft lot

  • Basement Area

    - sqft

  • MLS Name

    California Regional MLS

  • MLS Number

    ML82063527

  • MLS Status

    Active

  • Days on Market

    1

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Location

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 8

    Bathrooms: 9

Interior

  • Heating

    Central, Heat Pump

  • Sewer

    Public Sewer

  • Interior Features

    Breakfast Bar

  • Flooring

    Tile, Wood

  • Window Features

    Skylights

  • Appliances

    Dishwasher, Disposal, Microwave, Refrigerator, Range Hood, Dryer, Washer

Construction

  • Year Built

    Year Built: 1949

  • Home type

    Single Family Residence

  • Construction Materials

    Stone

  • Roof

    Flat, Shingle

  • Architectural Style

    Contemporary, Modern

Utilities & Energy

  • Utilities

    Natural Gas Available

  • Laundry Features

    Gas Dryer Hookup

  • Fireplace Features

    Living Room

  • Water Source

    Public

Other Features

  • Lot Features

    Sloped Down

  • Patio And Porch Features

    Deck

Price History

DateEventPrice

10/03/2026

Source: mls_logoCalifornia Regional MLS-CA #ML82063527

Listed for Sale

$3,595,000 +162.41%

$936/sqft

12/07/2017

Source: mls_logoCalifornia Regional MLS-CA #ML81682507

Price Increased

$1,370,000 +14.17%

$357/sqft

12/07/2017

Source: mls_logoCalifornia Regional MLS-CA #ML81682507

Sold

$1,199,950

$313/sqft

Nearby Homes

Based on information from California Regional Multiple Listing Service, Inc. as of Oct 02, 2026, 09:00AM and /or other sources. 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. Information being provided is 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. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.

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