21033 Chirping Sparrow Rd is a 2,558 square foot house on a 7,757 square foot lot with 4 bedrooms and 3 bathrooms. Based on Redfin's Diamond Bar data, we estimate the home's value is $1,212,516.
Single-familyProperty Type
1983Year Built
7,757 sq ftLot Size
$474Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$1,212,516
$18K since August
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 13.6% lower than the average sale price ($1.40M) 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
$5,616 (+7.9%)
$75,384 + $318,406
$393,790
2024
$5,205 (+4.3%)
$75,384 + $318,406
$393,790
2023
$4,988 (+2.2%)
$73,906 + $312,163
$386,069
2022
$4,883 (+2.1%)
$72,457 + $306,043
$378,500
2021
$4,782 (+1.3%)
$71,037 + $300,043
$371,080
2020
$4,722 (+1.9%)
$69,645 + $294,160
$363,805
2019
$4,634 (+5.1%)
$68,931 + $291,144
$360,075
2018
$4,408 (+4.6%)
$67,580 + $285,436
$353,016
2017
$4,213 (+3.5%)
$64,956 + $274,353
$339,309
2016
$4,071 (−0.5%)
$64,956 + $274,353
$339,309
2015
$4,093 (−0.1%)
$63,683 + $268,974
$332,657
2014
$4,099 (+1.3%)
$61,499 + $259,745
$321,244
2012
$4,048 (+3.0%)
$61,222 + $258,572
$319,794
2011
$3,930 (+0.8%)
$60,022 + $253,502
$313,524
2010
$3,898 (+0.5%)
$58,846 + $248,532
$307,378
2009
$3,877 (+2.9%)
$58,407 + $246,675
$305,082
2008
$3,769
$58,546 + $247,262
$305,808
Tax history for 21033 Chirping Sparrow Rd
Year
Property tax
Land + Additions
Assessment*
2025
$5,616 (+7.9%)
$75,384 + $318,406
$393,790
2024
$5,205 (+4.3%)
$75,384 + $318,406
$393,790
2023
$4,988 (+2.2%)
$73,906 + $312,163
$386,069
2022
$4,883 (+2.1%)
$72,457 + $306,043
$378,500
2021
$4,782 (+1.3%)
$71,037 + $300,043
$371,080
2020
$4,722 (+1.9%)
$69,645 + $294,160
$363,805
2019
$4,634 (+5.1%)
$68,931 + $291,144
$360,075
2018
$4,408 (+4.6%)
$67,580 + $285,436
$353,016
2017
$4,213 (+3.5%)
$64,956 + $274,353
$339,309
2016
$4,071 (−0.5%)
$64,956 + $274,353
$339,309
2015
$4,093 (−0.1%)
$63,683 + $268,974
$332,657
2014
$4,099 (+1.3%)
$61,499 + $259,745
$321,244
2012
$4,048 (+3.0%)
$61,222 + $258,572
$319,794
2011
$3,930 (+0.8%)
$60,022 + $253,502
$313,524
2010
$3,898 (+0.5%)
$58,846 + $248,532
$307,378
2009
$3,877 (+2.9%)
$58,407 + $246,675
$305,082
2008
$3,769
$58,546 + $247,262
$305,808
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RL
Low Density Residential District
The RL zoning district is intended primarily for parcels developed with existing detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be three dwellings per gross acre. The RL zoning district is consistent with the low density residential land use category of the general plan.
Permitted uses
Include but are not limited to:
Livestock production
Housing-Single unit
Housing-Senior
Housing-Other
Infrastructure
Fire house
Police station
Park & open space
Property details
Interior
Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central
Exterior
Pool Information
Has Pool
Property Information
Subdivision Name: 29053
Living Sq. Ft: 2,558
# of Units: 1
Legal Description: TR=29053 LOT 42
Lot Information
# of Buildings: 1
Land Sq. Ft: 7,757
Legal Lot Number: 42
Municipality Name: DIAMOND BAR
Acres: 0.1781
Depth Footage: 110
Front Footage: 70
Zoning Code: LCR19000*
County Use Description: SINGLE FAMILY RESID
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 4
Baths: 3.0
Sq. Ft.: 2,558
Stories: —
Lot Size: 7,757 square feet
Style: Single Family Residential
Year Built: 1983
Year Renovated: 1983
County: Los Angeles County
APN: 8714020036
Home facts updated by county records on Aug 30, 2026
Around this home
Schools
Castle Rock Elementary School
Public K-5 • Assigned • 0.7mi
10/10
South Pointe Middle School
Public 6-8 • Assigned • 2.0mi
10/10
Diamond Bar High School
Public 9-12 • Assigned • 1.4mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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