Wonderful opportunity to own a bright, sun-filled home in the highly desirable Westwood Knolls neighborhood! It has exceptional potential to move in, renovate, expand, or build new. The existing ~1,180 sq ft single-level home features 3 bedrooms and 2 bathrooms, with main living areas thoughtfully positioned to capture natural light and views. A spacious combined living and dining area creates an inviting setting, complemented by hardwood floors, abundant storage, and updated kitchen. Step outside to a private backyard, perfect for entertaining or relaxing with patio space, lawn area, mature landscaping, and room to create your dream outdoor retreat. Additional highlights include an attached two-car garage with ample storage and workspace. Ideally located just minutes from shopping, dining, parks, and major commute routes, including proximity to Hillsdale Shopping Center, Caltrain, and easy access to Highways 92 and 101. Enjoy a peaceful residential setting while remaining conveniently connected to both San Francisco and Silicon Valley. Don't miss this rare chance to own a view property with incredible upside in one of San Mateo's most sought-after neighborhoods!
MLS #
ML82043124
MLS Source
MLSListings, Inc.
Days on Site
2
Dining Room
Dining Area in Living Room
Family Room
No Family Room
Fireplace
Living Room
Cooling
Central Forced Air
Heating
Forced Air
Roof
Composition, Shingle
Foundation
Other, Crawl Space
Garage/Parking
Attached Garage, Garage: 2 Car(s)
Elementary District
San Mateo-Foster City Elementary
High School District
San Mateo Union High
Sewer
Public Sewer
Water
Public
Zoning
R10006
423 42nd Ave is a Single Family Residence in San Mateo, CA 94403. This 1,180 square foot property sits on a 5,663 Sq Ft Lot and features 3 bedrooms & 2 full bathrooms. It is currently priced at $1,698,000 and was built in 1953. This address can also be written as 423 42nd Ave, San Mateo, CA 94403.
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This listing information is up-to-date as of April 17, 2026. For the most current information, please contact Cathy Liu, (408) 826-2548