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!
MLS #
ML82025448
MLS Source
MLSListings, Inc.
Days on Site
13
Appliances
Garbage Disposal, Microwave, Oven Range, Refrigerator, Washer/Dryer
Dining Room
Eat in Kitchen, No Formal Dining Room
Family Room
Kitchen/Family Room Combo, Separate Family Room
Fireplace
Living Room, Wood Burning
Flooring
Hardwood
Laundry
Inside
Cooling
None
Heating
Forced Air
Roof
Composition
Foundation
Concrete Perimeter
Garage/Parking
Attached Garage, Covered Parking, Tandem Parking, Garage: 1 Car(s)
Elementary District
San Mateo-Foster City Elementary
High School District
San Mateo Union High
Sewer
Public Sewer
Water
Public
Zoning
RM0003
223 S Humboldt St is a Single Family Residence in San Mateo, CA 94401. This 1,510 square foot property sits on a 7,828 Sq Ft Lot and features 4 bedrooms & 2 full bathrooms. It is currently priced at $1,598,000 and was built in 1946. This address can also be written as 223 S Humboldt St, San Mateo, CA 94401.
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This listing information is up-to-date as of November 03, 2025. For the most current information, please contact Mandana Simai, (408) 315-9958