331 Warren Rd is a 2,100 square foot house on a 7,443 square foot lot with 3 bedrooms and 2 bathrooms. - it last sold on February 06, 2017 for $2,000,000. Based on Redfin's San Mateo data, we estimate the home's value is $3,445,525.
Single-familyProperty Type
1950Year Built
7,443 sq ftLot Size
$1,641Est. Price/Sq.Ft.
2 car garageParking
Source:Public Records
Redfin Estimate
$3,445,525
$1.4M since sold in February 2017$14K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 7.8% lower than the average sale price ($3.74M) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning and permits
Zoning
Permits
R1A
Single-Family Residence Districts
The R1 Single-Family Residence Districts are intended to create, preserve and enhance areas suitable for single-family dwellings with a substantial presence of open space and opportunities for outdoor living. The R1 districts are intended to protect the character and variety of neighborhoods, preserve privacy and prevent burdens on public facilities, while allowing reasonable housing opportunities for families.
Permitted uses
Include but are not limited to:
Day care facility
Housing-Single unit
Housing-Mobile home park
Jan 5, 2024 • Final
Single family (addition) - add/alter
Convert a sunroom into an accessory dwelling unit. Construct an addition to the back of the accessory dwelling unit.
Addition
ADU
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Interior
Basement Information
Basement Sq. Ft: 610
Basement Type: Unfinished
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Room Information
# of Rooms: 7
Exterior
Exterior Information
Construction Type: Wood/Steel
Building Construction Quality: Good
Property Information
Subdivision Name: 02 SAN MATEO PARK
Living Sq. Ft: 2,100
Gross Sq. Ft: 2,710
Ground Floor Sq. Ft: 2,100
Building Sq. Ft: 2,710
# of Stories: 1
Legal Description: 53.50 FT X 49.75 FT F & R MEAS PTN OF LOTS 171 172 SAN MATEO PARK SUB NO 2 RSM D/55 CITY OF SAN MATEO
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Basement Garage
Garage/Parking Sq. Ft: 610
Garage / Carport Type: Basement
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,443
Legal Lot Number: 171
Acres: 0.1709
Depth Footage: 138
Front Footage: 52
Zoning Code: R10010
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 2,100
Stories: 1.0
Lot Size: 7,443 square feet
Style: Single Family Residential
Year Built: 1950
Year Renovated: 1950
County: San Mateo County
APN: 032032180
Home facts updated by county records on Jul 15, 2026
Around this home
Schools
San Mateo Park Elementary School
Public K-5 • Assigned • 0.2mi
2/10
Borel Middle School
Public 6-8 • Assigned • 1.9mi
8/10
San Mateo High School
Public 9-12 • Assigned • 1.1mi
9/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Local insights from Redfin agents
San Mateo stayed one of the Peninsula's busiest markets. Homes averaged 110% of asking price, and buyers continue to compete for updated homes in neighborhoods like Aragon, Baywood and Beresford Park.