Los Angeles County  »  21521 Birch Hill Dr

21521 Birch Hill Drive, Diamond Bar, CA 91765 Property Information

21521 Birch Hill Drive, Diamond Bar, CA 91765 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Permits
  • Neighborhood
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21521 Birch Hill Drive, Diamond Bar, CA 91765
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Address

Primary address 21521 Birch Hill Drive, Diamond Bar
Zip code 91765
County Los Angeles
Municipality Diamond Bar

Sales & Tax Overview for 21521 Birch Hill Drive, Diamond Bar

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 08/06/2012
Sale price $365,000
Arm's length
Current property tax $5,963

Lot & Building Information for 21521 Birch Hill Drive, Diamond Bar

Building sqft 1,288
Building class Single Family Residence (0100)
Acreage 0.183
Units 1
Year built 1963
Year last altered
Bedrooms 4
Bathrooms 2
Heating/AC Central refrigeration & heating
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Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district Low Medium Density Residential (RLM)
Weed hazard No
School district Walnut Valley Unified School District

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 21521 Birch Hill Drive, Diamond Bar

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  • • Improvements for 21521 Birch Hill Drive, Diamond Bar , including their type, square footage, grade and when they were built.
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About 21521 Birch Hill Drive, Diamond Bar

What is the year built & the total sq. ft. for 21521 Birch Hill Drive, Diamond Bar, CA 91765?

21521 Birch Hill Drive, Diamond Bar, CA 91765 was built in 1963 and has a total of 1,288 square feet.

What is the assessed value of 21521 Birch Hill Drive, Diamond Bar, CA 91765 and the property tax paid?

Assessed at $458,446, the tax amount paid for 21521 Birch Hill Drive, Diamond Bar, CA 91765 is $5,368.

When was 21521 Birch Hill Drive, Diamond Bar, CA 91765 last sold?

21521 Birch Hill Drive, Diamond Bar, CA 91765 was last sold in 10/01/2013.

Ownership Information

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Real Estate Reports:
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
Eliza Theiss, Apr 23, 2026 $4.6M Hudson Yards Maintains Top Spot, Luxury Sales in Malba Set $2.5M Price Record for Queens
Despite prices declining, Hudson Yards remained the most expensive NYC neighborhood, but TriBeCa’s growth closed the gap to under $400,000, while Malba set a new historic price record for Queens at $2.5 million, securing the highest ranking ever for the borough at #5.
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Past Sales & Property History for 21521 Birch Hill Drive, Diamond Bar

Create a free account to view the complete sales history for 21521 Birch Hill Drive, Diamond Bar, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
08/06/2012 $365,000
06/05/2012 $320,000
05/24/2012 $385,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 21521 Birch Hill Drive, Diamond Bar

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Doc image
10/14/2020 Trust Deed 11/01/2050
03/11/2020 Trust Deed 04/01/2050
06/20/2019 Affidavit
05/29/2019 Trust Deed 06/01/2049
03/21/2018 Reconveyance
Substitution Trustee
03/14/2018 Trust Deed 04/01/2048
09/11/2014 Trust Deed 07/24/2044
10/01/2013 Grant Deed
(File correction - Single parcel sale)
10/24/2012 Correction Grant Deed
08/06/2012 Trust Deed 08/01/2042
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R: Recorded date
D: Document date

Property Taxes for 21521 Birch Hill Drive, Diamond Bar

Access detailed property tax data for 21521 Birch Hill Drive, Diamond Bar, CA 91765. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025-2026
Base tax $5,369
Current property tax $5,963
Market value $458,446
Tax per sqft $4

Special Assessments And Penalties for 21521 Birch Hill Drive, Diamond Bar

Special Assessments

Abatements, financial assistance programs and non-ad valorem taxes levied as special taxes/direct assessments are applicable for this property.

Code Description Tax levied
06221 County Sanitation District #21
14651 Diamond Bar District #38
02824 Diamond Bar Lighting District
06181 Greater L.A. County Vector Control District
03694 La County Regional Park And Open Space District

Assessment History for 21521 Birch Hill Drive, Diamond Bar

Here's the assessment & property tax history for 21521 Birch Hill Drive, Diamond Bar, including the evolution of the total tax rate and corresponding property tax.

Year Assessment value Total tax rate Property tax Year over year change
2025-2026 $458,446 1.1711 $5,369 +3.43%
2024-2025 $449,458 1.1549 $5,191 +2.57%
2023-2024 $440,646 1.1485 $5,061 +2.10%
2022-2023 $432,007 1.1474 $4,957 +1.74%
2021-2022 $423,537 1.1502 $4,872 +1.33%

Permits for 21521 Birch Hill Drive, Diamond Bar

The complete history of permits filed for 21521 Birch Hill Drive, Diamond Bar, including new construction or demolition permits, complaints, plus any work pertaining to plumbing, heating and sprinkler systems is available with a free account. Available data goes back to 1990.

Data not available for this property.

Diamond Bar residential market stats

Median Sale Price
$949,500
-3.1% YoY
Median Price/Sqft
$553
0.5% YoY
Los Angeles County Median Sale Price
$872,000
0.2% YoY

Access a detailed real estate market overview of Diamond Bar so you can assess current trends, home values, types of properties sold and transaction volume. View the median home sale price in Diamond Bar and compare it to other neighborhoods in Los Angeles County.

Check out recently sold homes in Diamond-Bar and see how their prices compare.

Risk

Create a free account to unlock extended information for 21521 Birch Hill Drive, Diamond Bar, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) X (See more on map)
Fire hazard zone See more on map
Faults and tsunami inundation zone map
Landslides and liquefaction map

Transportation

Access the detailed traffic volume map for 21521 Birch Hill Drive, Diamond Bar to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Evergreen Elementary School 9 Public K-5 719 0.29
Dbc Children's Center NR Private PK-K 48 0.33
Dbc Children's Center NR Private PK-K 48 0.33
Castle Rock Elementary School 7 Public K-5 646 0.85
Institute Of Knowledge NR Private K-8 127 1.10

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
South Pointe Middle School 8 Public 6-8 879 0.92
Institute Of Knowledge NR Private K-8 127 1.10
Institute of Knowledge NR Private K-10 265 1.14
Chaparral Middle School 9 Public 6-8 1,133 1.44
Walnut Valley Adult NR Public 0 1.56

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Diamond Bar High School 10 Public 9-12 2,557 0.35
Institute of Knowledge NR Private K-10 265 1.14
Walnut Valley Adult NR Public 0 1.56
International Cross Academy NR Private 1-12 0 1.70
Elite Open School NR Private 5-12 43 2.05

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 21521 Birch Hill Drive, Diamond Bar

Here are the neighbors for 21521 Birch Hill Drive, Diamond Bar.

Address Square feet Purchase date Purchase price
21515 Birch Hill Dr, Diamond Bar 1,315 07/12/2002 $310,003
21529 Birch Hill Dr, Diamond Bar 1,830 09/26/2025
21535 Birch Hill Dr, Diamond Bar 1,530 08/04/1999
21549 Birch Hill Dr, Diamond Bar 1,315 05/27/2010 $340,003
21621 Birch Hill Dr, Diamond Bar 1,300 09/15/2023
21617 Lost River Dr, Diamond Bar 1,280 06/20/2019 $666,000
21557 Birch Hill Dr, Diamond Bar 1,602 07/03/2003 $345,000
21637 Birch Hill Dr, Diamond Bar 1,288 07/01/2019 $668,000
2202 Evergreen Springs Dr, Diamond Bar 2,216 12/08/2021
2220 Evergreen Springs Dr, Diamond Bar 1,692 01/21/2026
21625 Lost River Dr, Diamond Bar 1,315 01/15/2016
21603 Lost River Dr, Diamond Bar 1,288 10/24/2017
21629 Birch Hill Dr, Diamond Bar 1,315 10/26/2007
21541 Birch Hill Dr, Diamond Bar 2,006 08/18/2017 $775,000
21611 Lost River Dr, Diamond Bar 1,315 01/16/2025
21605 Birch Hill Dr, Diamond Bar 1,788 08/14/2003 $386,003
21613 Birch Hill Dr, Diamond Bar 1,315 10/29/2020
21639 Lost River Dr, Diamond Bar 1,588 07/11/2011
21631 Lost River Dr, Diamond Bar 1,300 03/18/2024
21539 Lost River Dr, Diamond Bar 1,300 03/28/2025 $900,000

Nearby ZIP Codes for 21521 Birch Hill Drive, Diamond Bar

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