2121 Shirley Rd is a 820 square foot house on a 5,893 square foot lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Belmont data, we estimate the home's value is $1,765,139.
Single-familyProperty Type
1940Year Built
5,893 sq ftLot Size
$2,153Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,765,139
$143K since September
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 13.1% lower than the average sale price ($2.03M) of 5 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2025
$15,638 (+2.5%)
$1,076,940 + $203,616
$1,280,556
2024
$15,256
$1,055,825 + $199,624
$1,255,449
2023
$15,267 (+4.5%)
$1,035,123 + $195,711
$1,230,834
2022
$14,612 (+2.0%)
$1,014,828 + $191,875
$1,206,703
2021
$14,324 (+1.9%)
$994,930 + $188,113
$1,183,043
2020
$14,052 (+1.4%)
$975,422 + $184,425
$1,159,847
2019
$13,861 (+2.0%)
$965,421 + $182,535
$1,147,956
2018
$13,584 (+0.1%)
$946,492 + $178,957
$1,125,449
2017
$13,569 (+2.5%)
$909,740 + $172,010
$1,081,750
2016
$13,242 (+483.9%)
$909,740 + $172,010
$1,081,750
2015
$2,268 (+4.9%)
$891,902 + $168,638
$1,060,540
2014
$2,163 (+0.7%)
$21,981 + $81,786
$103,767
2012
$2,148 (+5.3%)
$21,882 + $81,417
$103,299
2011
$2,040 (+17.1%)
$21,453 + $79,821
$101,274
2010
$1,743 (+3.9%)
$21,033 + $78,256
$99,289
2009
$1,678 (+3.1%)
$20,876 + $77,672
$98,548
2008
$1,627
$20,926 + $77,857
$98,783
Tax history for 2121 Shirley Rd
Year
Property tax
Land + Additions
Assessment*
2025
$15,638 (+2.5%)
$1,076,940 + $203,616
$1,280,556
2024
$15,256
$1,055,825 + $199,624
$1,255,449
2023
$15,267 (+4.5%)
$1,035,123 + $195,711
$1,230,834
2022
$14,612 (+2.0%)
$1,014,828 + $191,875
$1,206,703
2021
$14,324 (+1.9%)
$994,930 + $188,113
$1,183,043
2020
$14,052 (+1.4%)
$975,422 + $184,425
$1,159,847
2019
$13,861 (+2.0%)
$965,421 + $182,535
$1,147,956
2018
$13,584 (+0.1%)
$946,492 + $178,957
$1,125,449
2017
$13,569 (+2.5%)
$909,740 + $172,010
$1,081,750
2016
$13,242 (+483.9%)
$909,740 + $172,010
$1,081,750
2015
$2,268 (+4.9%)
$891,902 + $168,638
$1,060,540
2014
$2,163 (+0.7%)
$21,981 + $81,786
$103,767
2012
$2,148 (+5.3%)
$21,882 + $81,417
$103,299
2011
$2,040 (+17.1%)
$21,453 + $79,821
$101,274
2010
$1,743 (+3.9%)
$21,033 + $78,256
$99,289
2009
$1,678 (+3.1%)
$20,876 + $77,672
$98,548
2008
$1,627
$20,926 + $77,857
$98,783
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Permits
Nov 16, 2022 • Final
Roofing
Tear off the existing flat roof and install a new single-ply membrane.
Roofing
Dec 1, 2021 • Final
Plumbing
Perform a trenchless replacement of the sewer main in the backyard.
Plumbing
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: 180
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
View Information
View: Good
Property Information
Subdivision Name: BELMONT CC PROPERTIES 07
Living Sq. Ft: 820
Ground Floor Sq. Ft: 820
Building Sq. Ft: 1,250
# of Stories: 1
Legal Description: LOT 19 BLOCK 91 BELMONT CO CLUB PROP 7
Parking & Garage Information
# of Parking Spaces: 2
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 250
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 5,893
Legal Lot Number: 19
Legal Block Number: 91
Acres: 0.1353
Depth Footage: 119
Front Footage: 51
Zoning Code: R10006
County Use Description: SINGLE FAMILY
Financial
Assessor Information
Assessment Year: 2026
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 820
Stories: 1.0
Lot Size: 5,893 square feet
Style: Single Family Residential
Year Built: 1940
Year Renovated: 1945
County: San Mateo County
APN: 043252130
Home facts updated by county records on Sep 2, 2026
Around this home
Schools
Cipriani Elementary School
Public K-5 • Assigned • 0.4mi
8/10
Ralston Intermediate School
Public 6-8 • Assigned • 0.8mi
10/10
Carlmont High School
Public 9-12 • Assigned • 1.3mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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
5 days above 92° expected this year, 10 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
Belmont, CA • 94002
Average low and high temperatures (°F)
60
44
62
46
69
49
66
49
69
51
71
53
72
55
76
57
76
59
73
55
62
49
58
47
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 10.8 hours in
June and 5 hours in December, placing it above the
U.S. average for solar exposure.
10.8 hrs
5 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.68M – $2.03M
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