Prevu by reAlpha
BuySellBlogBrowse Listings

423 42nd AvenueSan Mateo, CA 94403

For Sale

$1,698,000

Smart Buyer Rebate $16,980

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!

Listed by Cathy Liu

·

License #01917044

·

Realty Innova

·

4088262548

Last updated April 20, 2026

·

Source: CRMLS #ML82043124

Listing Facts

  • TypeSingle-family
  • NeighborhoodWestwood Knolls
  • Bedrooms3
  • Bathrooms2
  • Days on Prevu108
  • Size1,180 sqft
  • Price per sqft$1,439

Amenities

  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

04/15/2026
Listed by Realty Innova
$1,698,000

Property Details for 423 42nd Avenue

Exterior

Construction

  • Roof: Composition, Shingle
  • Stories Total: 1
  • Year Built: 1953
  • Common Walls: No Common Walls

Measurements

  • Lot Size Acres: 0.13
  • Lot Size Area: 5,663
  • Lot Size Source: Assessor
  • Lot Size Square Feet: 5,663
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 042211010

Interior

Features

  • Fireplace Features: Living Room
  • Fireplace: Yes

Measurements

  • Living Area: 1,180
  • Living Area Source: Assessor

Rooms

  • Bathrooms Full: 2
  • Bathrooms Total Integer: 2
  • Bedrooms Total: 3

Parking

Parking

  • Attached Garage: Yes
  • Garage Spaces: 2
  • Garage: Yes
  • Parking Features: Attached
  • Parking Total: 2

Schools

High School

  • High School District: Other

Utilities

Equipment

  • Cooling: Central Air
  • Has Cooling: Yes
  • Heating: Forced Air
  • Has Heating: Yes
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 3 bedrooms and 2 bathrooms in this single-family home at 423 42nd Avenue.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 423 42nd Avenue.

How does 423 42nd Avenue compare to other single-family homes in Westwood Knolls?

This single-family home is listed 14% below the average price for single-family homes in Westwood Knolls and has been on the market for 45 more days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 1,180 sqft.

423 42nd Avenue is a 3-bedroom, 2-bath single-family home for sale in San Mateo CA 94403. On Prevu for 108 days at $1,698,000. This property features 1,180 square feet of living space, located in San Mateo. The median listing price for single-family homes in this area is $1,775,000. Property amenities include air conditioning and parking. Browse more single-family home listings in San Mateo.

Based on information from California Regional Multiple Listing Service, Inc. and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.