Recently Listed Open House 10/30 4pm - 6pm
2421 Shannon Drive
South San Francisco, CA, 94080 $ 1,628,000
Bedrooms4 Baths2.1 Sq 1,950 Monthly Estimate*
$ 11,244
for $1,628,000 with 4 bedrooms and 2 full baths, 1 half bath. This 1,950 square foot home was built in 1963 on a lot size of 0.164.
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.
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Open House
10/30/2026 4:00 PM - 6:00 PM
10/31/2026 1:00 PM - 4:00 PM
11/1/2026 1:00 PM - 4:00 PM
2421 Shannon Drive South San Francisco, CA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
FeaturesGeneralLiving Area 1950
Heating Forced Air
Cooling None
Roof Composition Shingles
Zoning R100
Garage Spaces 2
Year Built 1963
Stories Count 2
Levels Two Story
Property Subtype Detached
County San Mateo
Property Type Residential
HOA false
Garage Y/N true
Full Baths 2
Status Active
Directions Westborough to Olympic to Shannon.
City South San Francisco
High School District South San Francisco Unified
MLS Area Listing
Lot Size Square Feet 7145
Standard Status Active
Elementary School District South San Francisco Unified
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InteriorAir Conditioning Y/N false
Heating Y/N true
Fireplace Y/N false
Total Bedrooms 4
Total Baths 3
1/2 Baths 1
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ExteriorParking Features Attached
Water Source Public
Lot Size Area 7145
Building Area Total 1950
Lot Size Acres 0.164
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* Excluded FeaturesList ByMaryann ErnstListing Agent
maryann@maryannernst.comEmail
Affordability Calculator
- Monthly Principal & Interest
- $11,244
- Monthly Property Taxes
- --
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 7.375% 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 NearbySingle family listings in South San Francisco, CA
Average List Price $1,232,209
Percent of Sale Price 24%
About South San Francisco, CA 65,208 Population
8% Since 2002
$ 88,569 Median Income
40.22 Median Age
30% Households with Children
Trends Information provided by ATTOM Data Solutions.
4750511 Elementary School
0 Middle School
Unknown High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 10/23/2026 | $1,628,000 | | Listed Price |