Los Angeles County  »  21489 Cold Spring Ln

21489 Cold Spring Lane, Diamond Bar, CA 91765 - Property report

Also known as: 21489 Cold Spring Ln

Property image for 21489 Cold Spring Lane, Diamond Bar, CA 91765
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Property type

Single Family Residence (0100)

Year built

1977

Acreage

0.313

Sale price

$655,006

General Information

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Access up-to-date information from property owner names to sales history, deeds, tax info, mortgages, development data, planimetric maps and more.

Address
Primary address
21489 Cold Spring Ln
Diamond Bar, CA 91765
Zip code
91765
County
Los Angeles
Municipality
Diamond Bar

Owner

Find out who owns 21489 Cold Spring Lane, Diamond Bar, CA 91765. Uncover corporate and individual owners with a free account.

Building
Property type
Single Family Residence
Building sq. ft.
2,796
Buildings on lot
1
Year built
1977
Last altered
Bedrooms
3
Bathrooms
3
HVAC
Central refrigeration & heating
Sales
Sale date
06/23/2010
Sale price
$655,006
Arm's length
Tax
Tax year
2026-2027
Property tax
$10,301
Tax per sq. ft.
$4
Zoning & use
Zoning
Low Density Residential (RL)
Units
1
Lot
Acreage
0.313

Area overview

Walk score
40 /100.  Car-Dependent
Transit score
0 /100.  Minimal Transit
Bike score
11 /100.  Somewhat Bikeable
School district
Walnut Valley Unified School District
Weed hazard
No
Ownership

Ownership information for 21489 Cold Spring Lane, Diamond Bar, CA

Property owner name
Registered owner
Source
Deed
Owner contact information
Phone number
Owner address
Documents

Sales history for 21489 Cold Spring Lane, Diamond Bar, CA 91765

Sale date Sale price Buyer name Seller name
06/23/2010 $655,006 XXXX, XXXXX X XXX, XXXX X
06/04/2004 $639,006 XXXXXXXX XXXXXXX XXXXXXX XXXXXXXX
12/21/1999 $329,003 XXXXXXX, XXXXXXX X & XXXXXXX XXXX, XXXX-XXXXX & XXXX

*Most recent sales on record for this property.

More about Los Angeles County property records.

Title documents

Date Type Amount Party 1 Party 2
04/01/2016 Trust Deed XXXX XXXXX X XXXXX XXXX XXXXXXXX XXX
04/01/2016 Interspousal Transfer Grant Deed
(File correction - Single parcel sale)		 XXX XXXXX XXXX XXXXX X
12/15/2011 Trust Deed XXXX XXXXX X XXXXXXXX XXXXXXXXX XXXX
06/23/2010 Deed
(Sale for consideration - full DTT - Single parcel sale)		 XXX, XXXX X XXXX, XXXXX X
07/12/2006 Trust Deed XXX XXXX XXXX XXX XXXXXXX
03/24/2006 Trust Deed XXX XXXX XXXX XXX XXXXXXX
03/24/2006 Deed XXX XXXX XXX XXX XXXX XXXX
03/24/2006 Deed XXXXXXXX XXXXXXX XXX XXXX XXXX
06/04/2004 Deed
(Sale for consideration - full DTT - Single parcel sale)		 XXXXXXX XXXXXXXX XXXXXXXX XXXXXXX
06/04/2004 Deed XXXXX XXXXX XXXXXXXX XXXXXXX

*Most recent recorded documents on file for this property.

R: Recorded date
D: Document date

Tax

Property taxes for 21489 Cold Spring Lane, Diamond Bar, CA

Property tax data includes tax amount, market value and assessed value, exemptions, abatements and assessment history.

Current property tax
Tax year
2026-2027
Base tax
$10,301
Current property tax
$11,307
Tax per sq. ft.
$4
Recent tax assessments
Market value
$879,629
Land value
$437,533
Building value
$442,096

More about Los Angeles County property taxes

Assessment history

See the assessment and property tax history, including the evolution of the total tax rate and corresponding property tax amount.

Tax year Assessed value Tax rate Property tax Y-o-Y change
2025-2026 $862,382 1.1711 $10,099 +3.43%
2024-2025 $845,474 1.1549 $9,764 +2.57%
2023-2024 $828,898 1.1485 $9,520 +2.10%
2022-2023 $812,646 1.1474 $9,324 +1.75%
2021-2022 $796,713 1.1502 $9,164 +1.32%
2020-2021 $788,544 1.147016 $9,045 +4.07%
2019-2020 $757,927 1.146694 $8,691 +3.17%
2018-2019 $743,066 1.1337 $8,424 +5.02%
2017-2018 $728,497 1.1011 $8,021 +2.71%
2016-2017 $714,213 1.0935 $7,810 -0.69%

Special assessments & penalties for 21489 Cold Spring Lane, Diamond Bar, CA

Code Description Tax levied
00747 Consolidated Fire Protection District Of La County- Measure E
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
00744 Los Angeles County Fire Department
03071 Los Angeles County Flood Control
04000 Los Angeles County Sewer Maintenance
00170 Los Angeles County Trauma/Emerg Srvs
33011 Mwd Water Standby Charge #2
00177 Safe Clean Water Program Funding Measure W
36551 Three Valleys Mwd Standby Charge
37092 Walnut Valley Water Standby
Permits

Permit information for 21489 Cold Spring Lane, Diamond Bar, CA

No recently recorded permits for this property.

More about Los Angeles County property records

Neighborhood

Diamond Bar residential market stats

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.

Median sale price

$1,012,500

10.3% Y-o-Y

Median price/sq. ft.

$566

0.4% Y-o-Y

Los Angeles county median sale price

$870,000

-0.6% Y-o-Y

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

Risk

Create a free account to unlock expanded risk information, such as crime incidents in the area, tsunami and landslides risks, or its location relative to FEMA flood zones and the Coastal Barriers Resources System Area (COBRA).

FEMA flood zones

FEMA flood zones
X
Landslides and liquefaction map

Fire hazard zones

Faults and tsunami inundation zones map
Crime incidents map

Transportation

Daily traffic map
View daily traffic map

Access the detailed traffic volume map for 21489 Cold Spring Lane, Diamond Bar, CA 91765 to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance (miles)
Castle Rock Elementary School 7 Public K-5 646 0.39
Montessori School Of Diamond Bar NR Private PK-K 28 0.42
Montessori School Of Diamond Bar NR Private PK-K 28 0.42
Evergreen Elementary School 9 Public K-5 719 0.85
Dbc Children's Center NR Private PK-K 48 1.16
Dbc Children's Center NR Private PK-K 48 1.16
Tzu Chi Elementary School - Walnut NR Private K-5 53 1.96
Maple Hill Elementary School 9 Public K-5 562 2.16
Shelyn Elementary School 7 Public K-6 453 2.27
Walnut Valley Adult NR Public 0 2.36
Nearest middle schools

Name Rating Type Grade range No of students Distance (miles)
South Pointe Middle School 8 Public 6-8 879 1.70
Institute Of Knowledge NR Private K-8 127 2.15
Institute of Knowledge NR Private K-10 265 2.20
Elite Open School NR Private 5-12 43 2.27
International Cross Academy NR Private 1-12 0 2.29
Walnut Valley Adult NR Public 0 2.36
Chaparral Middle School 9 Public 6-8 1,133 2.39
Wisdom Kids College NR Private K-8 0 2.45
Ybarra Academy For The Arts And Technology 7 Public K-8 596 2.47
Rowland Adult And Community Education NR Public 0 2.84
Nearest high schools

Name Rating Type Grade range No of students Distance (miles)
Diamond Bar High School 10 Public 9-12 2,557 0.82
Institute of Knowledge NR Private K-10 265 2.20
Elite Open School NR Private 5-12 43 2.27
International Cross Academy NR Private 1-12 0 2.29
Walnut Valley Adult NR Public 0 2.36
John A. Rowland High School 8 Public 9-12 2,025 2.75
Rowland Adult And Community Education NR Public 0 2.84
Ron Hockwalt Academies (Continuation) School NR Public 9-12 41 2.96
Rowland Unified Community Day School NR Public 7-12 31 2.97
Elite Open School NR Private 5-12 70 2.99

Data provided by GreatSchools.org © 2026. All rights reserved.

Neighbors for 21489 Cold Spring Lane, Diamond Bar, CA

21491 Cold Spring Ln, Diamond Bar 21497 Cold Spring Ln, Diamond Bar 3395 Bent Twig Ln, Diamond Bar 21483 Cold Spring Ln, Diamond Bar 21459 Cold Spring Ln, Diamond Bar 21499 Cold Spring Ln, Diamond Bar 3365 Bent Twig Ln, Diamond Bar 21477 Cold Spring Ln, Diamond Bar 21463 Cold Spring Ln, Diamond Bar 21493 Cold Spring Ln, Diamond Bar 21471 Cold Spring Ln, Diamond Bar 3375 Bent Twig Ln, Diamond Bar 3369 Bent Twig Ln, Diamond Bar 21467 Cold Spring Ln, Diamond Bar 21495 Cold Spring Ln, Diamond Bar 21485 Cold Spring Ln, Diamond Bar 21479 Cold Spring Ln, Diamond Bar 3385 Bent Twig Ln, Diamond Bar 21487 Cold Spring Ln, Diamond Bar 21481 Cold Spring Ln, Diamond Bar

Nearby ZIP codes for 21489 Cold Spring Lane, Diamond Bar, CA

91722, Los Angeles County, CA 91723, Los Angeles County, CA 91724, Los Angeles County, CA 91744, Los Angeles County, CA 91748, Los Angeles County, CA 91768, Los Angeles County, CA 91773, Los Angeles County, CA 92821, Orange County, CA 92823, Orange County, CA 92835, Orange County, CA

Frequently asked questions

What is the year built for 21489 Cold Spring Lane, Diamond Bar, CA 91765?

The development at 21489 Cold Spring Lane, Diamond Bar, CA 91765 was built in 1977.

What is the total square footage of 21489 Cold Spring Lane, Diamond Bar, CA 91765?

21489 Cold Spring Lane, Diamond Bar, CA 91765 has a total of 2,796 square feet.

When was 21489 Cold Spring Lane, Diamond Bar, CA 91765 last sold and what was the sale price?

21489 Cold Spring Lane, Diamond Bar, CA 91765 was last sold on 06/23/2010 for $655,006.

What is the assessed value of 21489 Cold Spring Lane, Diamond Bar, CA 91765?

21489 Cold Spring Lane, Diamond Bar, CA 91765 is currently assessed at $862,382.

What are the property taxes for 21489 Cold Spring Lane, Diamond Bar, CA 91765?

The property taxes for 21489 Cold Spring Lane, Diamond Bar, CA 91765 total $10,099.

Disclaimer

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