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Back 300 31st Ave
Off Market

300 31st Ave

San Mateo CA 94403

3
2
2
1620 sq. ft.
6600 sq. ft.
Single-Family
Last sold for $2,350,000
Sternsmith GroupSternsmith Group, last sold this property on 10 October 2025 after 28 days on market.

Overview

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.

Features

3 bedrooms
2 bathrooms
2 carspaces
2 garage spaces
1620 sq. ft. floor area
6600 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 3 bedroom single-family properties sold in San Mateo over the last 12 months, the estimated median property value of 300 31st Ave is $1.92m.

Median value
$1.92m
Estimated value range
$1.2m - $3.42m
Median days on market
10
Estimated value trend
3%
increase over the last 12 months
Average days on market is based on recent, comparable sales in San Mateo. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 300 31st Ave

2025
Sold
$2,350,000
10 Oct 2025 by Sternsmith Group, of Compass
2021
Sold
$2,247,000
29 Jul 2021 by Lana Morin Pierce, of Intero Real Estate Services
2017
Sold
$1,605,000
20 Apr 2017 by Herb Schmulewicz, of KW Peninsula Estates

Happy sellers in San Mateo

94%
94% of sellers in San Mateo reported that their sale price either exceeded or met their price expectations.

San Mateo stands out for consistently delivering exceptional satisfaction and strong market results for homeowners.

This is based on voluntary sentiment collected from 3 reviews in San Mateo over the last 12 months.

Local market activity for 3 bedroom single-family properties in San Mateo

In the last 12 months, 131 three-bedroom single-family properties similar to 300 31st Ave, have been sold.

This represents a 13% increase in three-bedroom single-family properties sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in San Mateo

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Kelly Ringer-Radetich

Kelly Ringer-Radetich is an award winning recommended agent for San Mateo.  They have 1 local sale and collected 1 local review across the last 12 months.

  •   5   (20 reviews)
  •  1 Review in San Mateo
  •  1 Sale in San Mateo
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Jeff Goodman - DRE #01338912

Sellers who recommend Jeff Goodman - DRE #01338912 have praised them for being local expert, clear communication, responsive, supportive, well-connected, well-prepared, and trustworthy

  •   5   (55 reviews)
  •  1 Review in San Mateo
  •  1 Sale in San Mateo
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Daniel Harbuck

Daniel Harbuck is a recommended agent for San Mateo.  They have 1 local sale and collected 1 local review across the last 12 months.

  •   5   (26 reviews)
  •  1 Review in San Mateo
  •  1 Sale in San Mateo
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Sandra Fortayon

Sellers who recommend Sandra Fortayon have praised them for being local expert, responsive, clear communication, detail-oriented, dedicated, friendly, and patient

  •   5   (105 reviews)
  •  1 Review in San Mateo
  •  1 Sale in San Mateo
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