223 South Humboldt Street

Charming and move-in ready single-family home in the heart of San Mateo! This beautifully updated 4-bedroom, 2-bath residence features a remodeled main kitchen and bathrooms, a spacious living area with a wood-burning fireplace, and abundant natural light throughout. An additional kitchen in the back offers flexible use, ideal for in-law quarters or a separate living space. The extra-large lot with R3 zoning provides tremendous upside potential to add an ADU or explore multi-unit development options. Ample driveway parking accommodates multiple cars. Conveniently located less than half a mile to the Caltrain station, and just minutes from vibrant Downtown San Mateo, major employers like Snowflake, SurveyMonkey, Roblox, and Gilead, with easy access to Hwy 101 and 92. Perfectly situated between San Francisco and Silicon Valley and only 10 minutes to SFO. A rare opportunity to enjoy comfort today with incredible future potential!

Days on Market

52 days

Current Status

Contingent

Sold Price

Original Price

$1,598,000

List Price

$1,198,000

On Market Date

Oct 21, 2025

Contract Date

Dec 12, 2025

Close Date

Jan 5, 2026

Property Type

Single Family Home

Area

416 - Bowie Estate Etc.

Zip Code

94401

MLS ID

ML82025448

APN

033-134-220

Year Built

1946

Stories in Building

1

Possession

Unavailable

COE

Jan 5, 2026

Data Source

MLSL

Origin MLS System

MLSListings, Inc.

Bed

4

Bath

2

Parking

1

Attached Garage, Covered Parking, Tandem Parking

SQ FT

1,510

SQ FT Source

Unavailable

Lot SQ FT

7,828.0

Lot Acres

0.179706 Acres

Kitchen

Garbage Disposal, Microwave, Oven Range, Refrigerator

Cooling

None

Dining Room

Eat in Kitchen, No Formal Dining Room

Disclosures

NHDS Report

Family Room

Kitchen / Family Room Combo, Separate Family Room

Flooring

Hardwood

Foundation

Concrete Perimeter

Fire Place

Living Room, Wood Burning

Heating

Forced Air

Laundry

Inside, Washer / Dryer

Fee

Unavailable

MLS and other Information regarding properties for sale as shown in Theo have been obtained from various sources such as sellers, public records, agents and other third parties. This information may relate to the condition of the property, permitted or unpermitted uses, zoning, square footage, lot size/acreage or other matters affecting value or desirability. Unless otherwise indicated in writing, neither brokers, agents nor Theo have verified, or will verify, such information. If any such information is important to buyer in determining whether to buy, the price to pay or intended use of the property, buyer is urged to conduct their own investigation with qualified professionals, satisfy themselves with respect to that information, and to rely solely on the results of that investigation.

School data provided by GreatSchools. School service boundaries are intended to be used as reference only. To verify enrollment eligibility for a property, contact the school directly.