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2421 Shannon DriveSouth San Francisco, CA 94080

For Sale

$1,628,000

Smart Buyer Rebate $16,280

Set on a 7,145 sqft lot, one of the largest in Westborough, 2421 Shannon Drive welcomes you with a charming front porch, stone accents, and an extra long driveway. This four bedroom, two and a half bathroom home of 1950 total sqft (permitted sunroom included) offers bright interiors and generous outdoor space. Beautifully refinished floors warm the living room and upstairs bedrooms, while a separate dining area with a brick fireplace invites gathering. The kitchen features rich dark cabinetry, granite countertops, and a mosaic tile backsplash. An expansive permitted sunroom, framed by walls of windows overlooking the backyard, offers versatile space for relaxing, entertaining, or morning coffee. Four upstairs bedrooms provide flexibility for guests or a home office. The spacious backyard features curved garden beds, mature plantings, and paved areas for outdoor dining. A concrete pad offers potential for a future ADU, subject to city approval. An attached finished two car garage and extended four car driveway provide exceptional parking. Near Westborough Square shopping and dining, Highway 280, and Monte Verde Elementary, this home pairs everyday convenience with room to grow. Discover the space, comfort, and lasting potential of 2421 Shannon Drive in desirable Westborough.

Listed by Maryann Ernst

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KW Advisors

·

4153619921

Last updated October 31, 2026

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Source: MLSL #ML82065531

Listing Facts

  • TypeSingle-family
  • NeighborhoodWestborough
  • Bedrooms4
  • Bathrooms2.5
  • Days on Prevu8
  • Size1,950 sqft
  • Price per sqft$835

Amenities

  • Parking

Location

Mortgage Calculator

Listing History

10/23/2026
Listed by KW Advisors
$1,628,000
  1. 10/23/2026$1,628,000
    Listed by KW Advisors

Property Details for 2421 Shannon Drive

Exterior

Construction

  • Roof: Composition, Shingle
  • Stories: 2
  • Stories Total: 2
  • Year Built: 1963

Measurements

  • Building Area Total: 1,950
  • Lot Size Area: 7,145
  • Lot Size Source: Assessor
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 091-053-370

Interior

Features

  • Fireplace: Yes

Measurements

  • Living Area: 1,950

Rooms

  • Bathrooms Full: 2
  • Bathrooms Half: 1
  • Bedrooms Total: 4

Other

Location

  • City Region: Westborough

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Attached, On Street
  • Parking Total: 4

Schools

Elementary School

  • Elementary School: Monte Verde Elementary
  • Elementary School District: South San Francisco Unified

High School

  • High School: South San Francisco High
  • High School District: South San Francisco Unified

Middle or Junior School

  • Middle Or Junior School: Westborough Middle

Utilities

Equipment

  • Heating: Forced Air, Natural Gas, Central
  • Has Heating: Yes
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 2.5 bathrooms in this single-family home at 2421 Shannon Drive.

What schools are nearby to 2421 Shannon Drive?

Nearby schools include the Monte Verde Elementary, Westborough Middle, and South San Francisco High.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 2421 Shannon Drive.

How does 2421 Shannon Drive compare to other single-family homes in Westborough?

This single-family home is listed 12% above the average price for single-family homes in Westborough and has been on the market for 92 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 1,950 sqft.

2421 Shannon Drive is a 4-bedroom, 2.5-bath single-family home for sale in SOUTH SAN FRANCISCO CA 94080. On Prevu for 8 days at $1,628,000. This home features 1,950 square feet of living space, located in Westborough. The median listing price for single-family homes in this area is $874,950. Nearby schools include Monte Verde Elementary, Westborough Middle, and South San Francisco High. Property amenities include parking. Explore more single-family home listings in South San Francisco.

The data relating to real estate for sale on this display comes in part from the Internet Data Exchange program of the MLSListings™️ MLS system. Real estate listings held by brokerage firms other than Prevu Real Estate are marked with the Internet Data Exchange and detailed information about them includes the names of the listing brokers and listing agents. Based on information from the MLSListings MLS as of 10/31/2026. 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. Data Services by Constellation Data Labs. IDX display powered by Prevu Real Estate. Copyright 2026 MLSListings Inc. All rights reserved.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.