---
listing_id: ML82065531
status: Active
price: 1628000
beds: 4
baths_full: 2
baths_half: 1
sqft_living: 1950
sqft_lot: 7145
lot_acres: 
year_built: 1963
property_type: Residential
property_subtype: Single Family Residence
address: "2421 Shannon Dr"
city: South San Francisco
state: CA
zip: 94080
county: "San Mateo County"
lat: 37.638969
lng: -122.45342
days_on_market: 0
hoa_fee: 
hoa_frequency: 
garage_spaces: 2
list_agent: "Maryann Ernst"
list_office: "KW Advisors"
list_agent_phone: "(415) 361-9921"
list_agent_license: 01758548
mls_source: MLSL
modified: 2026-10-23
transaction_type: buy
---

Home | San Mateo County | South San Francisco | 94080 | 2421 Shannon Dr

2421 Shannon Dr, South San Francisco, CA 94080

MLS: ML82065531 | Status: Active | Price: $1,628,000
Beds/Baths: 4 / 2 /1
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Sq Ft Lot Yr Built
4 2 /1 1,950 7,145 1963

Upcoming Open Houses

Date Time Hosted By
Saturday, October 24 1:00 pm - 4:00 pm Maryann Ernst
Sunday, October 25 2:00 pm - 4:00 pm Maryann Ernst

Remarks

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.

MLS Listing Information

Field Value
MLS # ML82065531
MLS Source MLSListings, Inc.
Days on Site 0

Features

Interior Features

Feature Details
Dining Room No Formal Dining Room
Family Room Kitchen/Family Room Combo
Fireplace Other Location
Cooling None
Heating Central Forced Air - Gas

Exterior Features

Feature Details
Roof Composition, Shingle
Foundation Concrete Perimeter

Parking, School, and Other Information

Feature Details
Garage/Parking Attached Garage, On Street, Garage: 2 Car(s)
Elementary District South San Francisco Unified
High School District South San Francisco Unified
Water Public
Zoning R10006

Contact Information

Maryann Ernst
KW Advisors
License #: 01758548
Phone: (415) 361-9921

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Monte Verde Elementary School public K-5 0.18 mi 9
Westborough Middle School public 6-8 0.56 mi 6
Portola Elementary School public K-6 0.97 mi 6
Skyline Elementary School public K-5 1.09 mi 8
Ponderosa Elementary School public K-5 1.16 mi 7
South San Francisco Adult public UG 1.21 mi N/A
Baden High (Continuation) School public 9-12 1.22 mi 2
Buri Buri Elementary School public K-5 1.33 mi 8
South San Francisco High School public 9-12 1.61 mi 8
Alta Loma Middle School public 6-8 1.62 mi 5
Los Cerritos Elementary School public K-5 1.66 mi 1
Community Day public 6-12 1.66 mi N/A
Junipero Serra Elementary School public K-5 1.72 mi 9
Sunset Ridge Elementary School public K-5 1.74 mi 5
Oceana High School public 9-12 1.84 mi 8
John Muir Elementary School public K-6 1.97 mi 9
El Camino High School public 9-12 2.03 mi 10
Ingrid B. Lacy Middle School public 6-8 2.07 mi 7
Sunshine Gardens Elementary School public K-5 2.11 mi 6
Ocean Shore Elementary School public K-8 2.14 mi 8

Nearby Homes

Address Price Beds Baths Sq Ft Status
295 Edgewood Dr $1,398,999 4 2 1,560 PendingDoNotShow
245 Castleton Way $1,598,000 5 3 2,035 Active
3991 Coronado Way Way $1,395,000 3 2 1,160 Active
2260 Palmetto Ave $1,375,000 4 2 1,720 Active
1049 Jenevein Ave $1,688,000 3 2 1,853 Active

Disclosures

©2026 MLSListings Inc. All rights reserved. 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 provided is for personal, non-commercial use by the viewer and may not be redistributed without explicit authorization from MLSListings Inc.

Presently MLSListings.com displays Active, Contingent, Pending, and Recently Sold listings. Recently Sold listings are properties which were sold within the last three years. After that period listings are no longer displayed in MLSListings.com. Pending listings are properties under contract and no longer available for sale. Contingent listings are properties where there is an accepted offer, and seller may be seeking back-up offers. Active listings are available for sale.

This listing information is up-to-date as of October 23, 2026. For the most current information, please contact Maryann Ernst, (415) 361-9921.