---
listing_id: ML82021175
status: Closed
price: 2350000
beds: 3
baths_full: 2
baths_half: 0
sqft_living: 1620
sqft_lot: 6600
lot_acres: 
year_built: 1941
property_type: Residential
property_subtype: Single Family Residence
address: "300 31st Ave"
city: San Mateo
state: CA
zip: 94403
county: "San Mateo County"
lat: 37.536156
lng: -122.306513
days_on_market: 225
hoa_fee: 
hoa_frequency: 
garage_spaces: 2
list_agent: "Sternsmith Group"
list_office: "Compass"
list_agent_phone: "(650) 678-5455"
list_agent_license: 70016718
mls_source: MLSL
modified: 2026-01-30
transaction_type: recentlySold
---

Home | San Mateo County | San Mateo | 94403 | 300 31st Ave

300 31st Ave, San Mateo, CA 94403

MLS: ML82021175 | Status: Sold | Price: $2,350,000
Beds/Baths: 3 / 2
Property Type: Residential

Quick Facts

Beds Baths Sq Ft Sq Ft Lot Yr Built
3 2 1,620 6,600 1941

Remarks

Welcome to this beautifully remodeled 3-bedroom, 2-bath home (1620sf) with the ADDED BONUS of a detached ADU (341sf), providing a total of 1961sf of living space. Designed for modern living, the open-concept kitchen features a large island with seating and flows seamlessly into the dining and living rooms, perfect for everyday living and entertaining. The private bedroom wing includes a spacious primary suite with backyard views and two additional bedrooms sharing an updated bath. A versatile playroom adds extra flexibility. The detached ADU, complete with kitchenette and full bath, offers ideal space for guests, extended family, or a home office. Outdoor living shines with an expansive yard featuring a fire pit with built-in seating, a deck, lawn, and dedicated play space. Additional highlights include a two-car garage and prime location across from a pocket park and just a short walk to the newly reimagined Hillsdale Shopping Center. Move-in ready and thoughtfully upgraded, this home truly has it all.

MLS Listing Information

Field Value
MLS # ML82021175
MLS Source MLSListings, Inc.

Features

Interior Features

Feature Details
Bedrooms Primary Suite/Retreat, Walk-in Closet
Bathrooms Double Sinks, Primary - Stall Shower(s), Shower over Tub - 1, Updated Bath(s)
Kitchen Island with Sink, Skylight(s)
Appliances Dishwasher, Hood Over Range, Microwave, Oven Range - Built-In, Gas, Refrigerator, Wine Refrigerator, Washer/Dryer
Dining Room Formal Dining Room
Family Room No Family Room
Fireplace Living Room
Flooring Wood
Laundry In Garage
Cooling None
Heating Central Forced Air - Gas

Exterior Features

Feature Details
Roof Tile
Foundation Concrete Perimeter

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

Sternsmith Group
Compass
License #: 01733080,01999389
Phone: (650) 678-5455

School Ratings

School data provided by GreatSchools.org

Nearby Schools

School Type Grades Distance Rating
Laurel Elementary School public K-5 0.25 mi 3
Beresford Elementary School public K-5 0.28 mi 4
Abbott Middle School public 6-8 0.40 mi 4
Hillsdale High School public 9-12 0.53 mi 9
Meadow Heights Elementary School public K-5 0.59 mi 7
George Hall Elementary School public K-5 0.84 mi 9
Fiesta Gardens International Elementary School public K-5 0.97 mi 4
College Park Elementary School public K-5 1.15 mi 9
Borel Middle School public 6-8 1.26 mi 8
Cipriani Elementary School public K-5 1.42 mi 8
Central Elementary School public K-5 1.54 mi 9
Aragon High School public 9-12 1.62 mi 10
Ralston Intermediate School public 6-8 1.71 mi 10
Baywood Elementary School public K-5 1.74 mi 7
Sunnybrae Elementary School public K-5 1.80 mi 2
Parkside Montessori public PK,KG,1,2,3,4,5,6,7,8 1.85 mi 9
Nesbit Elementary School public K-8 1.89 mi 6
Foster City Elementary School public K-5 1.92 mi 9
Fox Elementary School public K-5 2.04 mi 10
Bayside Academy public K-8 2.14 mi 6

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 Sternsmith Group, (650) 678-5455.