---
listing_id: ML82043124
status: Active
price: 1698000
beds: 3
baths_full: 2
baths_half: 0
sqft_living: 1180
sqft_lot: 5663
lot_acres: 
year_built: 1953
property_type: Residential
property_subtype: Single Family Residence
address: "423 42nd Ave"
city: San Mateo
state: CA
zip: 94403
county: "San Mateo County"
lat: 37.524832
lng: -122.302751
days_on_market: 8
hoa_fee: 
hoa_frequency: 
garage_spaces: 2
list_agent: "Cathy Liu"
list_office: "Realty Innova"
list_agent_phone: "(408) 826-2548"
list_agent_license: 01917044
mls_source: MLSL
modified: 2026-04-23
transaction_type: buy
---

Home | San Mateo County | San Mateo | 94403 | 423 42nd Ave

423 42nd Ave, San Mateo, CA 94403

MLS: ML82043124 | Status: Active | Price: $1,698,000
Beds/Baths: 3 / 2
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Sq Ft Lot Yr Built
3 2 1,180 5,663 1953

Remarks

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 Listing Information

Field Value
MLS # ML82043124
MLS Source MLSListings, Inc.
Days on Site 8

Features

Interior Features

Feature Details
Dining Room Dining Area in Living Room
Family Room No Family Room
Fireplace Living Room
Cooling Central Forced Air
Heating Forced Air

Exterior Features

Feature Details
Roof Composition, Shingle
Foundation Other, Crawl Space

Parking, School, and Other Information

Feature Details
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

Contact Information

Cathy Liu
Realty Innova
License #: 01917044
Phone: (408) 826-2548

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Abbott Middle School public 6-8 0.52 mi 4
Laurel Elementary School public K-5 0.56 mi 3
Cipriani Elementary School public K-5 0.67 mi 8
Hillsdale High School public 9-12 0.79 mi 9
Ralston Intermediate School public 6-8 1.04 mi 10
George Hall Elementary School public K-5 1.07 mi 9
Beresford Elementary School public K-5 1.07 mi 4
Central Elementary School public K-5 1.09 mi 9
Meadow Heights Elementary School public K-5 1.24 mi 7
Tierra Linda Middle School public 6-8 1.42 mi 10
Mariposa Upper Elementary School public 4,5 1.42 mi 10
Fox Elementary School public K-5 1.51 mi 10
Nesbit Elementary School public K-8 1.52 mi 6
Carlmont High School public 9-12 1.53 mi 10
Fiesta Gardens International Elementary School public K-5 1.65 mi 4
College Park Elementary School public K-5 1.87 mi 9
Gateway Center public 6-12 1.88 mi N/A
Borel Middle School public 6-8 2.02 mi 8
Arundel Elementary School public K-3 2.14 mi 10
Foster City Elementary School public K-5 2.18 mi 9

Nearby Homes

Address Price Beds Baths Sq Ft Status
1515 Chula Vista Dr $1,938,000 3 2 1,480 PendingDoNotShow
184 42nd Ave $1,598,000 3 1/1 1,305 PendingDoNotShow
1860 San Carlos Ave $1,952,000 3 2 1,354 Active
1736 Hamlet St $1,949,000 4 3 1,700 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 April 23, 2026. For the most current information, please contact Cathy Liu, (408) 826-2548.