21474 Cold Spring Ln, Diamond Bar, CA 91765

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Off market sep 2009 for $610K

$1,353,290

Est. refi paymentEst. refi $4,128/mo

•

2,037

sq ft

21474 Cold Spring Ln, Diamond Bar, CA 91765

About this home

Well maintained bright single story home with 3 bedrooms, den, large family and living room. Den can be used as a 4th bedroom. This beautiful home has 180 Degree city light view, sparkling pool and spa, and lots of upgrades including newly remodeled and upgraded kitchen with custom cabinets and granite counter tops, stainless steel appliances, and custom paint. From the master bedroom, family room and the kitchen you have the view of the pool and the breathtaking city lights. The master bath has been remodeled with new custom tiles. Other features include cathedral ceiling, fire place in living room, breakfasr area, and wood and granite flooring. Walnut School district.

Single-familyProperty Type

1977Year Built

0.62 acresLot Size

$664Est. Price/Sq.Ft.

Listed by Mandy Alavi •DRE #01397175 • Global Realty

Bought with OUT OF AREA ARCADIA • OUT OF AREA OFFICE

Redfin checked: 2 minutes ago

•Source:CRMLS #A09048328

Redfin Estimate

$1,353,290

$743K since sold in September 2009$12K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 6.6% higher than the average sale price ($1.27M) of 6 comparable homes.

SOLD SEP 28, 2026
$1,110,000
A
4 beds2 baths2,108 sq ft
3147 Fallow Fld, Diamond Bar, CA 91765
SOLD SEP 28, 2026
$1,380,000
B
4 beds3 baths2,712 sq ft
21504 Cold Spring Ln, Diamond Bar, CA 91765
SOLD MAY 14, 2026
$1,330,000
C
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD OCT 6, 2026
$1,280,000
D
4 beds2 baths2,054 sq ft
22608 Red Fir Ln, Diamond Bar, CA 91765
Ricky&Jessie Realty
SOLD SEP 4, 2026
$1,265,000
E
4 beds2.5 baths2,640 sq ft
3106 Cherrydale, Diamond Bar, CA 91765
New Star Realty & Inv.
SOLD AUG 20, 2026
$1,250,000
F
4 beds3 baths2,050 sq ft
1374 Deeplawn Dr, Diamond Bar, CA 91765

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Earn from this home

Sell

$999,898

Est. take-home

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Refinance

Est. cash available

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Rent

$3,456/mo

Redfin rental estimate

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Market trends in 91765, CA

Last updated September 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

97.8%

0.8% MoM

Median sale price

$1.1M

$12K MoM

Avg. days on market

61d

18 days MoM

Recently sold homes

3 MoM

New listings for sale

COMING SOON
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OPEN TODAY, 1PM TO 4PM
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2119 Dublin Ln #2, Diamond Bar, CA 91765
$399,000
2 beds1 bath850 sq ft
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$399,000
2 beds1 bath850 sq ft
22804 Hilton Head Dr #40, Diamond Bar, CA 91765
Pinnacle Real Estate Group
OPEN TODAY, 12PM TO 3PM
$1,175,000
4 beds2.5 baths1,829 sq ft
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OPEN SUN, 2PM TO 4PM
$1,100,000
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$4,200,000
5 beds6 baths6,257 sq ft
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OPEN TODAY TO 3PM
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4 beds2 baths1,994 sq ft
1160 N Del Sol, Diamond Bar, CA 91765
Synergy Real Estate
OPEN TODAY, 1PM TO 4PM
$555,000
2 beds1 bath914 sq ft
21755 Laurelrim Unit B, Diamond Bar, CA 91765
Aramis Realty Group Inc.
$3,070,000
6 beds8 baths7,884 sq ft
23240 Ridge Line, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 21474 Cold Spring Ln

Date

Event

Price

CRMLS #TR14143756

Jul 8, 2014

Listed

$929,000

$456/sq ft

CRMLS #A09048328

Sep 22, 2009

Sold

$610,000

$299/sq ft

Aug 18, 2009

Listing Removed

—

Aug 6, 2009

Contingent

—

Jul 24, 2009

Price Changed

$634,900

$312/sq ft

May 27, 2009

Price Changed

$649,000

$319/sq ft

Apr 29, 2009

Listed

$675,000

$331/sq ft

Public Records

May 27, 2005

Sold

$640,000

$314/sq ft

CRMLS #H503500

May 27, 2005

Sold

$639,900

$314/sq ft

Apr 2, 2005

Listed

$639,900

$314/sq ft

Public Records

Sep 20, 1994

Sold

$260,000

$128/sq ft

Public Records

Jun 17, 1993

Sold

$265,000

$130/sq ft

Public Records

May 5, 1987

Sold

$190,000

$93/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$10,318 (+5.2%)

$394,985 + $408,150

$803,135

2024

$9,808 (+2.9%)

$387,241 + $400,148

$787,389

2023

$9,529 (+2.6%)

$379,649 + $392,302

$771,951

2022

$9,285 (+1.9%)

$372,205 + $384,610

$756,815

2021

$9,115 (+1.3%)

$364,907 + $377,069

$741,976

2020

$9,001 (+1.9%)

$357,752 + $369,676

$727,428

2019

$8,831 (+4.7%)

$354,084 + $365,886

$719,970

2018

$8,436 (+4.8%)

$347,142 + $358,712

$705,854

2017

$8,051 (+3.0%)

$333,663 + $344,784

$678,447

2016

$7,819 (−0.6%)

$333,663 + $344,784

$678,447

2015

$7,867 (−0.2%)

$327,121 + $338,024

$665,145

2014

$7,884 (+1.0%)

$315,897 + $326,426

$642,323

2012

$7,802 (+2.9%)

$314,470 + $324,951

$639,421

2011

$7,582 (+0.7%)

$308,304 + $318,580

$626,884

2010

$7,526 (+9.3%)

$302,259 + $312,334

$614,593

2009

$6,888 (−15.4%)

$300,000 + $310,000

$610,000

2008

$8,142

$396,800 + $167,400

$564,200

Tax history for 21474 Cold Spring Ln

Year

Property tax

Land + Additions

Assessment*

2025

$10,318 (+5.2%)

$394,985 + $408,150

$803,135

2024

$9,808 (+2.9%)

$387,241 + $400,148

$787,389

2023

$9,529 (+2.6%)

$379,649 + $392,302

$771,951

2022

$9,285 (+1.9%)

$372,205 + $384,610

$756,815

2021

$9,115 (+1.3%)

$364,907 + $377,069

$741,976

2020

$9,001 (+1.9%)

$357,752 + $369,676

$727,428

2019

$8,831 (+4.7%)

$354,084 + $365,886

$719,970

2018

$8,436 (+4.8%)

$347,142 + $358,712

$705,854

2017

$8,051 (+3.0%)

$333,663 + $344,784

$678,447

2016

$7,819 (−0.6%)

$333,663 + $344,784

$678,447

2015

$7,867 (−0.2%)

$327,121 + $338,024

$665,145

2014

$7,884 (+1.0%)

$315,897 + $326,426

$642,323

2012

$7,802 (+2.9%)

$314,470 + $324,951

$639,421

2011

$7,582 (+0.7%)

$308,304 + $318,580

$626,884

2010

$7,526 (+9.3%)

$302,259 + $312,334

$614,593

2009

$6,888 (−15.4%)

$300,000 + $310,000

$610,000

2008

$8,142

$396,800 + $167,400

$564,200

*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

0.64 Acres

Year renovated

1977

Sq. Ft.

2,037

Year built

1977

Style

Single Family Residential

County

Los Angeles County

APN

8714001008

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Oct 7, 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

Interior

Laundry Information
Has Laundry
In Garage

Kitchen Information
Appliances: Counter Top, Double Oven, Dishwasher, Garbage Disposal, Microwave
Has Appliances
Breakfast Nook

Bathroom Information
# of Baths (Full): 2

Cooling Information
Central
Has Cooling

Room Information
Den, Family Room, Living Room, Primary Bedroom

Fireplace Information
Living Room
Has Fireplace

Interior Features
Levels: One
Spa Features: In Ground
Has Spa

Exterior

Exterior Information
Fencing: Wrought Iron
Has Fence
Construction Materials: Stucco

Exterior Features
Pool Features: In Ground
Has Pool

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Lawn, Landscaped, Paved, Sprinkler System, Yard

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8714001008
Has View

Financial

Assesments Information
Assessments: Unknown

Location

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.96901100
Longitude: -117.84020500

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 2,037
Stories: —
Lot Size: 0.64 acres
Style: Single Family Residential
Year Built: 1977
Year Renovated: 1977
County: Los Angeles County
APN: 8714001008

Home facts updated by county records on Oct 7, 2026

Other

Miscellaneous Information
Exclusions: Refrigerator, Washer and Dryer
Lease Considered

Listing Information
Days Active in MLS: 111
Continuous Days Active in MLS: 111

Listing Agent Information
List Agent First Name: Mandy
List Agent Last Name: Alavi

Listing Office Information
List Office Name: Global Realty

Selling Agent Information
Buyer Agent First Name: OUT OF AREA
Buyer Agent Last Name: ARCADIA

Selling Office Information
Buyer Office Name: OUT OF AREA OFFICE

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 • 0.8mi

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

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, 21 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

$1.29M – $1.56M

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Home values near 21474 Cold Spring Ln

Data from public records.

Address	Redfin Estimate
21478 Cold Spring Lane, Diamond Bar, CA 3 Beds \| 3 Baths \| 2712 Sq. Ft.	$1,338,548
21470 Cold Spring Lane, Diamond Bar, CA 3 Beds \| 3 Baths \| 2378 Sq. Ft.	$1,316,364

Address	Redfin Estimate
21476 Cold Spring Lane, Diamond Bar, CA 3 Beds \| 3 Baths \| 2796 Sq. Ft.	$1,416,152
21462 Cold Spring Lane, Diamond Bar, CA 3 Beds \| - Baths \| 2037 Sq. Ft.	$955,763

Address	Redfin Estimate
21472 Cold Spring Lane, Diamond Bar, CA 4 Beds \| - Baths \| 2712 Sq. Ft.	$1,428,921
21458 Cold Spring Lane, Diamond Bar, CA 4 Beds \| 3 Baths \| 2294 Sq. Ft.	$1,166,661

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

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 91765, CA

Sale history for 21474 Cold Spring Ln

Tax history for 21474 Cold Spring Ln

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91765

Home values near 21474 Cold Spring Ln

More real estate resources