Recently Listed Open House 10/25 2pm - 4pm
2421 Shannon Drive
South San Francisco, CA, 94080 $ 1,628,000
Bedrooms4 Baths2.1 Sq 1,950 Monthly Estimate*
$ 11,244
Listed by Maryann Ernst, KW Advisors, maryann@maryannernst.com
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
10/25/2026 2:00 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
Cooling None
Possession Close Of Escrow
Roof Composition Shingle
Zoning R10006
Garage Spaces 2
Year Built 1963
Property Subtype Single Family Residence
County San Mateo
New Construction false
Property Type Residential
HOA false
Attached Garage true
Garage Y/N true
Full Baths 2
Special Listing Conditions Standard
Status Active
Directions Westborough to Olympic to Shannon Cross Street: Olympic
High School Other
City South San Francisco
High School District South San Francisco Unified
MLS Area 699 - Not Defined
Lot Size Units Square Feet
Lot Size Square Feet 7145
Elementary School Other
Property Attached Y/N false
Middle/Junior High School Other
Standard Status Active
Occupancy Type Vacant
Year Built Source Assessor
Virtual Tour https://www.2421Shannon.com
Property Sub Type Additional Single Family Residence
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InteriorTotal Stories 2
Common Walls No Common Walls
Air Conditioning Y/N true
Heating Y/N true
Fireplace Y/N true
Half Baths 1
Total Bedrooms 4
Total Baths 3
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ExteriorWater Source Public
Total Parking 4
Lot Size Area 7145
Foundation Details Concrete Perimeter
Lot Size Acres 0.164
Lot Size Source Assessor
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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 $1,227,245
Percent of Sale Price 25%
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.
4826967 Elementary School
4826966 Middle School
Other High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 10/23/2026 | $1,628,000 | | Listed Price |