---
listing_id: ML82018966
status: Closed
price: 2430000
beds: 7
baths_full: 3
baths_half: 1
sqft_living: 2600
sqft_lot: 8116
lot_acres: 
year_built: 1951
property_type: Residential
property_subtype: Single Family Residence
address: "823 31st Ave"
city: San Mateo
state: CA
zip: 94403
county: "San Mateo County"
lat: 37.531749
lng: -122.318683
days_on_market: 229
hoa_fee: 
hoa_frequency: 
garage_spaces: 2
list_agent: "Disen Cai RE Group"
list_office: "KW Advisors"
list_agent_phone: "(650) 622-2156"
list_agent_license: 70010134
mls_source: MLSL
modified: 2026-01-30
transaction_type: recentlySold
---

Home | San Mateo County | San Mateo | 94403 | 823 31st Ave

823 31st Ave, San Mateo, CA 94403

MLS: ML82018966 | Status: Sold | Price: $2,430,000
Beds/Baths: 7 / 3 /1
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Sq Ft Lot Yr Built
7 3 /1 2,600 8,116 1951

Remarks

Located in one of San Mateos most sought-after neighborhoods, 823 31st Ave is a beautifully maintained 7-bedroom, 3.5-bathroom home with approx. 2,600 sq. ft. of living space. This spacious residence combines modern updates with plenty of room, making it perfect for a growing family or those seeking versatility. The main level features a bright open living area with large windows, a modern kitchen, a dining area, and a cozy family room. Also on this level are three well-sized bedrooms and 1.5 bathrooms. Upstairs offers four spacious bedrooms and two full baths, including a primary suite with ample closet space and an en-suite bathroom. The large backyard is ideal for gatherings, gardening, or relaxing, and is easily accessible from the main living area. This home features a collection of mature fruit trees, including four orange trees, one lemon tree, one calamansi tree, and one white peach tree, adding both charm and seasonal bounty to the outdoor space. A spacious garage provides ample storage and parking and includes an EV charger, catering to modern convenience. Just minutes from downtown San Mateo, this home offers easy access to shopping, dining, parks, schools, and major highways for a convenient commute to Silicon Valley and San Francisco.

MLS Listing Information

Field Value
MLS # ML82018966
MLS Source MLSListings, Inc.

Features

Interior Features

Feature Details
Bedrooms Primary Suite/Retreat, More than One Bedroom on Ground Floor
Bathrooms Primary - Stall Shower(s), Updated Bath(s)
Kitchen Exhaust Fan
Appliances Dishwasher, Exhaust Fan, Freezer, Microwave, Oven Range - Gas, Refrigerator
Dining Room Dining Area, Eat in Kitchen
Family Room Separate Family Room
Fireplace Living Room
Laundry In Garage
Cooling None
Heating Forced Air, Gas

Exterior Features

Feature Details
Roof Shingle
Foundation Concrete Perimeter

Parking, School, and Other Information

Feature Details
Garage/Parking Attached Garage, On Street, 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

Disen Cai RE Group
KW Advisors
License #: 01928373
Phone: (650) 622-2156

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Hillsdale High School public 9-12 0.24 mi 9
Meadow Heights Elementary School public K-5 0.51 mi 7
Abbott Middle School public 6-8 0.55 mi 4
Laurel Elementary School public K-5 0.73 mi 3
Beresford Elementary School public K-5 0.73 mi 4
Borel Middle School public 6-8 1.27 mi 8
Cipriani Elementary School public K-5 1.29 mi 8
Aragon High School public 9-12 1.41 mi 10
Ralston Intermediate School public 6-8 1.43 mi 9
Gateway Center public 6-12 1.54 mi N/A
Baywood Elementary School public K-5 1.55 mi 6
George Hall Elementary School public K-5 1.55 mi 8
Fox Elementary School public K-5 1.56 mi 9
Fiesta Gardens International Elementary School public K-5 1.62 mi 3
College Park Elementary School public K-5 1.74 mi 8
Highlands Elementary School public K-5 1.81 mi 6
Central Elementary School public K-5 2.03 mi 9
Sunnybrae Elementary School public K-5 2.09 mi 1
South Hillsborough School public K-5 2.31 mi 8
Mariposa Upper Elementary School public 4,5 2.37 mi 9

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 January 30, 2026. For the most current information, please contact Disen Cai RE Group, (650) 622-2156.