21482 Cold Spring Ln, Diamond Bar, CA 91765

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Off Market Nov 2009 for $630K

$1,256,416

Est. refi paymentEst. refi $4,093/mo

•

2,712

sq ft

21482 Cold Spring Ln, Diamond Bar, CA 91765

About this home

Single-familyProperty Type

1977Year Built

1.16 acresLot Size

$463Est. Price/Sq.Ft.

3 car garageParking

Listed by Peter Jeong •DRE #01087270 • Masters Realty Eastern Group

Listed by Justin Yoo •DRE #01242971 • Masters Realty Eastern Group

Bought with Justin Yoo •DRE #01242971 • Masters Realty Eastern Group

Redfin checked: 2 minutes ago

•Source:CRMLS #H09096437

Redfin Estimate

$1,256,416

$626K since sold in November 2009$2,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 20.3% lower than the average sale price ($1.58M) of 6 comparable homes.

SOLD MAY 28, 2026
$1,505,000
A
4 beds3 baths2,712 sq ft
3249 Hawkwood Rd, Diamond Bar, CA 91765
SOLD APR 28, 2026
$1,400,000
B
4 beds3 baths2,688 sq ft
2618 Rocky Trail Rd, Diamond Bar, CA 91765
SOLD AUG 21, 2026
$1,680,000
C
5 beds3 baths3,006 sq ft
21642 High Bluff Rd, Diamond Bar, CA 91765
Century 21 Masters
SOLD MAY 12, 2026
$1,680,000
D
4 beds3 baths2,697 sq ft
21535 Chirping Sparrow, Diamond Bar, CA 91765
SOLD MAR 6, 2026
$1,610,000
E
4 beds2.5 baths2,814 sq ft
2562 Steeplechase Ln, Diamond Bar, CA 91765
Meridox Real Estate
SOLD JUL 17, 2026
$1,589,000
F
4 beds2.5 baths2,805 sq ft
21040 Ambushers, Diamond Bar, CA 91765
New Star Realty & Inv.

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Sell

$893,270

Est. take-home

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Refinance

Est. cash available

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Rent

$3,941/mo

Redfin rental estimate

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Market trends in 91765, CA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

99.1%

0.2% MoM

Median sale price

$1.1M

$48K MoM

Avg. days on market

42d

0 days MoM

Recently sold homes

108

17 MoM

New listings for sale

NEW 4 HRS AGO
$946,000
3 beds4 baths1,700 sq ft
3199 Marigold, Diamond Bar, CA 91765
NEW 9 HRS AGO
$1,195,000
3 beds2.5 baths2,031 sq ft
24237 Seagreen Dr, Diamond Bar, CA 91765
NEW 17 HRS AGO
$1,350,000
5 beds3 baths2,585 sq ft
24435 Nan Ct, Diamond Bar, CA 91765
COMING SOON
$585,000
2 beds2.5 baths1,012 sq ft
1109 Golden Springs Dr Unit D, Diamond Bar, CA 91765
$1,648,000
4 beds3 baths3,212 sq ft
3315 Hawkwood, Diamond Bar, CA 91765
First Team Real Estate
$5,380,000
6 beds7 baths9,038 sq ft
2828 Water Course Dr, Diamond Bar, CA 91765
$1,199,999
4 beds2.5 baths1,915 sq ft
23308 Quail Smt, Diamond Bar, CA 91765
$818,800
3 beds3 baths1,570 sq ft
22935 Estoril Dr #6, Diamond Bar, CA 91765
3D WALKTHROUGH
$1,690,000
4 beds3 baths2,587 sq ft
1515 Sunbluff Dr, Diamond Bar, CA 91765
$538,000
3 beds2 baths1,047 sq ft
800 Grand Ave Unit D1, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21482 Cold Spring Ln

Date

Event

Price

CRMLS #H09096437

Nov 25, 2009

Sold

$630,000

$232/sq ft

Oct 7, 2009

Listing Removed

—

Sep 16, 2009

Price Changed

$590,000

$218/sq ft

Sep 14, 2009

Price Changed

$699,000

$258/sq ft

Sep 4, 2009

Listed

$719,000

$265/sq ft

CRMLS #H07051011

Apr 28, 2007

Listing Removed

—

Apr 8, 2007

Listed

$799,900

$295/sq ft

CRMLS #H608483

Dec 23, 2006

Listing Removed

—

Jun 22, 2006

Listed

$815,000

$301/sq ft

Public Records

Nov 16, 1989

Sold

$422,000

$156/sq ft

Public Records

Mar 3, 1978

Sold

$120,000

$44/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$10,677 (+5.7%)

$296,882 + $516,324

$813,206

2024

$10,099 (+2.9%)

$296,882 + $516,324

$813,206

2023

$9,814 (+2.6%)

$291,061 + $506,200

$797,261

2022

$9,562 (+1.9%)

$285,354 + $496,275

$781,629

2021

$9,383 (+1.3%)

$279,759 + $486,545

$766,304

2020

$9,264 (+1.9%)

$274,274 + $477,005

$751,279

2019

$9,089 (+4.5%)

$271,462 + $472,114

$743,576

2018

$8,695 (+4.8%)

$266,140 + $462,857

$728,997

2017

$8,301 (+3.1%)

$255,806 + $444,885

$700,691

2016

$8,052 (−0.6%)

$255,806 + $444,885

$700,691

2015

$8,100 (−0.3%)

$250,791 + $436,162

$686,953

2014

$8,127

$242,186 + $421,196

$663,382

2012

$8,123 (+2.9%)

$241,092 + $419,293

$660,385

2011

$7,894 (+0.7%)

$236,365 + $411,072

$647,437

2010

$7,837 (+31.6%)

$231,731 + $403,012

$634,743

2009

$5,957 (+2.7%)

$230,000 + $400,000

$630,000

2008

$5,800

$213,374 + $262,703

$476,077

Tax history for 21482 Cold Spring Ln

Year

Property tax

Land + Additions

Assessment*

2025

$10,677 (+5.7%)

$296,882 + $516,324

$813,206

2024

$10,099 (+2.9%)

$296,882 + $516,324

$813,206

2023

$9,814 (+2.6%)

$291,061 + $506,200

$797,261

2022

$9,562 (+1.9%)

$285,354 + $496,275

$781,629

2021

$9,383 (+1.3%)

$279,759 + $486,545

$766,304

2020

$9,264 (+1.9%)

$274,274 + $477,005

$751,279

2019

$9,089 (+4.5%)

$271,462 + $472,114

$743,576

2018

$8,695 (+4.8%)

$266,140 + $462,857

$728,997

2017

$8,301 (+3.1%)

$255,806 + $444,885

$700,691

2016

$8,052 (−0.6%)

$255,806 + $444,885

$700,691

2015

$8,100 (−0.3%)

$250,791 + $436,162

$686,953

2014

$8,127

$242,186 + $421,196

$663,382

2012

$8,123 (+2.9%)

$241,092 + $419,293

$660,385

2011

$7,894 (+0.7%)

$236,365 + $411,072

$647,437

2010

$7,837 (+31.6%)

$231,731 + $403,012

$634,743

2009

$5,957 (+2.7%)

$230,000 + $400,000

$630,000

2008

$5,800

$213,374 + $262,703

$476,077

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

Public record

Public record
Zoning

Beds

Baths

Stories

—

Lot width

—

Lot depth

—

Lot size

1.16 Acres

Year renovated

1977

Sq. Ft.

2,712

Year built

1977

Style

Single Family Residential

County

Los Angeles County

APN

8714002013

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 30, 2026.

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

Parking

Parking / Garage Information
Attached Garage
# of Garage Spaces: 3

Interior

Laundry Information
Has Laundry
Individual Room

Kitchen Information
Appliances: Dishwasher, Electric Cooking, Gas Cooking, Garbage Disposal, Oven, Range, Stove
Has Appliances
Breakfast Counter / Bar, Formal Dining Room

Bathroom Information
# of Baths (Full): 3

Cooling Information
Central
Has Cooling

Room Information
Family Room

Fireplace Information
Family Room
Has Fireplace

Flooring Information
Carpet, Wood

Heating Information
Forced Air
Has Heating

Interior Features
Levels: Two
Security Features: Smoke Detector
Window Features: Bay Window

Exterior

Exterior Information
Roof: Metal
Fencing: Blockwall
Has Fence
Construction Materials: Stucco

Exterior Features
Patio And Porch Features: Deck, Patio
Has Patio
Pool Features: Above Ground
Has Pool
Has Sprinklers

Lot Information
Lot Size Source: Assessor's Data
Lot Size Dimensions: 50529
Lot Features: Sprinklers In Front, Sprinklers In Rear, Sprinklers On Side, Sprinklers Timer, Sprinkler System

Property Information
Total # of Units: 1
Living Area Source: Assessor's Data
Parcel Number: 8714002013
Has View

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Water Source: District/Public

Location

Multi-Unit Information
# of Units In Community: 1

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.96853100
Longitude: -117.84060100
Road Frontage Type: Alley Access
Zoning: Lcr19000

Public facts

Beds: 3
Baths: 3.0
Sq. Ft.: 2,712
Stories: —
Lot Size: 1.16 acres
Style: Single Family Residential
Year Built: 1977
Year Renovated: 1977
County: Los Angeles County
APN: 8714002013

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 68
Continuous Days Active in MLS: 68

Listing Agent Information
List Agent First Name: Peter
List Agent Last Name: Jeong
Co-List Agent First Name: Justin
Co-List Agent Last Name: Yoo

Listing Office Information
List Office Name: Masters Realty Eastern Group
Co-List Office Name: Masters Realty Eastern Group

Selling Agent Information
Buyer Agent First Name: Justin
Buyer Agent Last Name: Yoo

Selling Office Information
Buyer Office Name: Masters Realty Eastern Group

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.3mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 1.6mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 0.9mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The real estate market is becoming more balanced. Buyers have more inventory, more data, and more time to make informed decisions than they did a year ago. Well-priced homes are still moving quickly, but today’s market rewards preparation, strategy,...
2 months ago • Los Angeles County
Peter Santos
Redfin Premier agent
82 deals
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Climate risks

1/10 Flood Factor

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

5/10 Fire Factor

5% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 98° expected this year, 20 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

6/10 Air Factor

10 unhealthy days expected this year, 13 days in 30 years

Provided by First Street

Historical weather

Diamond Bar, CA • 91765

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 9.5 hours in June and 6.9 hours in December, placing it above the U.S. average for solar exposure.

9.5 hrs

6.9 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$1.19M – $1.45M

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Nearby similar homes

$1,648,000

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3315 Hawkwood, Diamond Bar, CA 91765

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New listings for sale in 91765

NEW 4 HRS AGO

$946,000

3 beds4 baths1,700 sq ft

3199 Marigold, Diamond Bar, CA 91765

NEW 9 HRS AGO

$1,195,000

3 beds2.5 baths2,031 sq ft

24237 Seagreen Dr, Diamond Bar, CA 91765

NEW 17 HRS AGO

$1,350,000

5 beds3 baths2,585 sq ft

24435 Nan Ct, Diamond Bar, CA 91765

COMING SOON

$585,000

2 beds2.5 baths1,012 sq ft

1109 Golden Springs Dr Unit D, Diamond Bar, CA 91765

$1,648,000

4 beds3 baths3,212 sq ft

3315 Hawkwood, Diamond Bar, CA 91765

First Team Real Estate

$5,380,000

6 beds7 baths9,038 sq ft

2828 Water Course Dr, Diamond Bar, CA 91765

$1,199,999

4 beds2.5 baths1,915 sq ft

23308 Quail Smt, Diamond Bar, CA 91765

$818,800

3 beds3 baths1,570 sq ft

22935 Estoril Dr #6, Diamond Bar, CA 91765

3D WALKTHROUGH

$1,690,000

4 beds3 baths2,587 sq ft

1515 Sunbluff Dr, Diamond Bar, CA 91765

Home values near 21482 Cold Spring Ln

Data from public records.

Address	Redfin Estimate
21478 Cold Spring Ln, Diamond Bar, CA 3 Beds \| 3 Baths \| 2712 Sq. Ft.	$1,336,002
21472 Cold Spring Ln, Diamond Bar, CA 4 Beds \| - Baths \| 2712 Sq. Ft.	$1,478,600

Address	Redfin Estimate
21476 Cold Spring Ln, Diamond Bar, CA 3 Beds \| 3 Baths \| 2796 Sq. Ft.	$1,460,093
21470 Cold Spring Ln, Diamond Bar, CA 3 Beds \| 3 Baths \| 2378 Sq. Ft.	$1,304,547

Address	Redfin Estimate
21474 Cold Spring Ln, Diamond Bar, CA 4 Beds \| 2 Baths \| 2037 Sq. Ft.	$1,378,239
21496 Cold Spring Ln, Diamond Bar, CA 4 Beds \| 3 Baths \| 2712 Sq. Ft.	$1,647,056

Property information provided by CRMLS when last listed in 2009. This data may not match . Learn more.

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