Google street view image for 121 Warren Rd, San Mateo, CA 94401

Off Market Nov 1976 for $157K

$4,023,871

Est. refi paymentEst. refi $1,019/mo

•

2.5 ba

•

2,900

sq ft

121 Warren Rd, San Mateo, CA 94401

About this home

121 Warren Rd is a 2,900 square foot house on a 0.41 acre lot with 4 bedrooms and 2.5 bathrooms. - it last sold on November 22, 1976 for $157,000. Based on Redfin's San Mateo data, we estimate the home's value is $4,023,871.

Single-familyProperty Type

1926Year Built

0.41 acresLot Size

$1,388Est. Price/Sq.Ft.

Source:Public Records

Redfin Estimate

$4,023,871

$3.9M since sold in November 1976$27K since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 18.4% lower than the average sale price ($4.93M) of 6 comparable homes.

SOLD JUN 9, 2026
$5,420,000
A
4 beds3 baths3,680 sq ft
641 Crescent Ave, San Mateo, CA 94402
SOLD AUG 12, 2026
$5,000,000
B
5 beds3 baths3,205 sq ft
554 Edgewood Rd, San Mateo, CA 94402
SOLD MAR 11, 2026
$4,225,000
C
3 beds2.5 baths2,659 sq ft
195 Warren Rd, San Mateo, CA 94401
SOLD JUN 5, 2026
$4,150,000
D
3 beds2.5 baths2,740 sq ft
200 Occidental Ave, Burlingame, CA 94010
SOLD MAY 28, 2026
$5,400,000
E
4 beds3 baths2,413 sq ft
442 Hurlingham Ave, San Mateo, CA 94402
SOLD JUN 29, 2026
$5,400,000
F
4 beds3 baths3,195 sq ft
420 W Poplar Ave, San Mateo, CA 94402

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Earn from this home

Sell

$3,811,618

Est. take-home

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Est. cash available

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Rent

$7,699/mo

Redfin rental estimate

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Market trends in 94401, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

104.9%

0.8% MoM

Median sale price

$1.3M

$32K MoM

Avg. days on market

25d

3 days MoM

Recently sold homes

2 MoM

New listings for sale

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$748,000
2 beds2 baths1,020 sq ft
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OPEN SAT, 1PM TO 4PM
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3 beds2 baths1,372 sq ft
1625 Cottage Grove Ave, San Mateo, CA 94401
OPEN SUN, 2PM TO 4PM
$2,988,000
3 beds3 baths3,116 sq ft
555 Laurel Ave #122, San Mateo, CA 94401
$749,000
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3D WALKTHROUGH
$746,900
2 beds1 bath1,032 sq ft
808 Laurel Ave #202, San Mateo, CA 94401
$1,398,000
3 beds2 baths1,080 sq ft
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3D WALKTHROUGH
$1,298,888
2 beds2 baths1,400 sq ft
216 8th Ave, San Mateo, CA 94401
3D WALKTHROUGH
$1,298,000
2 beds2 baths1,680 sq ft
35 9th Ave #5, San Mateo, CA 94401
REDFIN OPEN TODAY, 4PM TO 7PM
$900,000
2 beds2 baths1,195 sq ft
153 N N San Mateo Dr #304, San Mateo, CA 94401
$4,998,000
12 beds12 baths7,756 sq ft
1101 Tilton Ave, San Mateo, CA 94401
See all

Provided by Redfin

Sale history for 121 Warren Rd

Year

Property tax

Land + Additions

Assessment*

2025

$7,056 (−15.5%)

$86,611 + $383,226

$469,837

2024

$8,354 (+31.3%)

$86,611 + $383,226

$469,837

2023

$6,363 (−7.4%)

$84,913 + $375,712

$460,625

2022

$6,871 (−3.6%)

$83,249 + $368,346

$451,595

2021

$7,126 (+4.5%)

$81,617 + $361,124

$442,741

2020

$6,818 (+19.0%)

$80,017 + $354,044

$434,061

2019

$5,732 (−1.1%)

$79,197 + $350,414

$429,611

2018

$5,798 (+17.0%)

$77,645 + $343,544

$421,189

2017

$4,955 (+3.4%)

$74,631 + $330,204

$404,835

2016

$4,792 (−5.9%)

$74,631 + $330,204

$404,835

2015

$5,090 (−11.2%)

$73,168 + $323,730

$396,898

2014

$5,731 (+12.0%)

$70,658 + $312,622

$383,280

2012

$5,117 (+0.2%)

$70,339 + $311,210

$381,549

2011

$5,105 (+6.0%)

$68,960 + $305,108

$374,068

2010

$4,818 (+3.3%)

$67,608 + $299,126

$366,734

2009

$4,665 (+10.6%)

$67,103 + $296,891

$363,994

2008

$4,216

$67,263 + $297,597

$364,860

Tax history for 121 Warren Rd

Year

Property tax

Land + Additions

Assessment*

2025

$7,056 (−15.5%)

$86,611 + $383,226

$469,837

2024

$8,354 (+31.3%)

$86,611 + $383,226

$469,837

2023

$6,363 (−7.4%)

$84,913 + $375,712

$460,625

2022

$6,871 (−3.6%)

$83,249 + $368,346

$451,595

2021

$7,126 (+4.5%)

$81,617 + $361,124

$442,741

2020

$6,818 (+19.0%)

$80,017 + $354,044

$434,061

2019

$5,732 (−1.1%)

$79,197 + $350,414

$429,611

2018

$5,798 (+17.0%)

$77,645 + $343,544

$421,189

2017

$4,955 (+3.4%)

$74,631 + $330,204

$404,835

2016

$4,792 (−5.9%)

$74,631 + $330,204

$404,835

2015

$5,090 (−11.2%)

$73,168 + $323,730

$396,898

2014

$5,731 (+12.0%)

$70,658 + $312,622

$383,280

2012

$5,117 (+0.2%)

$70,339 + $311,210

$381,549

2011

$5,105 (+6.0%)

$68,960 + $305,108

$374,068

2010

$4,818 (+3.3%)

$67,608 + $299,126

$366,734

2009

$4,665 (+10.6%)

$67,103 + $296,891

$363,994

2008

$4,216

$67,263 + $297,597

$364,860

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Zoning

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

Property details

Interior

Bathroom Information
# of Full Baths: 2
# of 1/2 Baths: 1

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Fireplace Information
# of Fireplaces: 1
Has Fireplace

Room Information
# of Rooms: 9

Exterior

Exterior Information
Physical Condition: Good
Building Style Type: Tudor
Construction Type: Wood/Steel
Building Construction Quality: Good
Exterior Wall: Stucco
Building Type: Detached

Pool Information
Has Pool

Property Information
Subdivision Name: SAN MATEO PARK SUB #1
Living Sq. Ft: 2,900
Ground Floor Sq. Ft: 2,500
Building Sq. Ft: 3,430
# of Stories: 2
Legal Description: ELY 101 FT OF LOT 79 SAN MATEO PARK SUB NO 1 RSM B/47 CITY OF SAN MATEO

Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 530
Garage / Carport Type: Attached

Lot Information
# of Buildings: 1
Land Sq. Ft: 17,889
Legal Lot Number: 79
Acres: 0.4107
Depth Footage: 184
Front Footage: 96
Zoning Code: R10010
County Use Description: SINGLE FAMILY

Utility Information
Sewer Type: Public
Water Service Type: Public

Financial

Assessor Information
Assessment Year: 2025

Public facts

Beds: 4
Baths: 2.5
Sq. Ft.: 2,900
Stories: 2.0
Lot Size: 0.41 acres
Style: Single Family Residential
Year Built: 1926
Year Renovated: 1926
County: San Mateo County
APN: 032062080

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 • 2.0mi

8/10

San Mateo High School

Public 9-12 • Assigned • 0.8mi

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.
1 month ago • San Mateo
Sasai Zhang
Redfin Premier agent
182 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

2/10 Heat Factor

7 days above 85° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

12 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

San Mateo, CA • 94401

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 10.5 hours in June and 5 hours in December, placing it above the U.S. average for solar exposure.

10.5 hrs

5 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$3.82M – $4.63M

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Home values near 121 Warren Rd

Data from public records.

Address	Redfin Estimate
140 Warren Road, San Mateo, CA 2 Beds \| 1.5 Baths \| 1310 Sq. Ft.	$2,440,586
149 Warren Road, San Mateo, CA 4 Beds \| 3 Baths \| 1770 Sq. Ft.	$3,191,995

Address	Redfin Estimate
139 Warren Road, San Mateo, CA 3 Beds \| 2 Baths \| 1970 Sq. Ft.	$3,624,260
110 Warren Road, San Mateo, CA 6 Beds \| 4.5 Baths \| 4960 Sq. Ft.	$6,015,766

Address	Redfin Estimate
136 Warren Road, San Mateo, CA 5 Beds \| 4.5 Baths \| 3720 Sq. Ft.	$5,630,770
88 Warren Road, San Mateo, CA 4 Beds \| 5.5 Baths \| 4339 Sq. Ft.	$6,697,868

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 94401, CA

Sale history for 121 Warren Rd

Tax history for 121 Warren Rd

Zoning

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 94401

Home values near 121 Warren Rd

More real estate resources