Off market feb 2003 for $280K

$866,153

Est. refi paymentEst. refi $1,689/mo

•

1,391

sq ft

448 ROCK Riv, Diamond Bar, CA 91765

About this home

Single-familyProperty Type

1971Year Built

8,359 sq ftLot Size

$623Est. Price/Sq.Ft.

2 car garageParking

Listed by JOAN DASTE •DRE #01303192 • CENTURY 21 CITRUS REALTY INC

Bought with Ernie Delgadillo •DRE #01161073 • FIRST TEAM REAL ESTATE

Redfin checked: a minute ago

•Source:CRMLS #C258184

Redfin Estimate

$866,153

$586K since sold in February 2003$10K since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.6% lower than the average sale price ($871K) of 6 comparable homes.

SOLD MAY 27, 2026
$900,000
A
3 beds2 baths1,553 sq ft
312 N Prospectors, Diamond Bar, CA 91765
SOLD SEP 2, 2026
$825,000
B
4 beds2 baths1,489 sq ft
105 N Palo Cedro, Diamond Bar, CA 91765
SOLD MAY 22, 2026
$895,000
C
3 beds2 baths1,554 sq ft
856 Golden Prados, Diamond Bar, CA 91765
SOLD JUN 9, 2026
$891,000
D
4 beds2 baths1,577 sq ft
353 S Rock River Rd, Diamond Bar, CA 91765
SOLD OCT 8, 2026
$755,000
E
4 beds2 baths1,386 sq ft
22928 Beaverhead Dr, Diamond Bar, CA 91765
SOLD MAR 31, 2026
$960,000
F
4 beds2 baths1,554 sq ft
23426 Clayhorn Dr, Diamond Bar, CA 91765

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Earn from this home

Sell

$748,139

Est. take-home

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Refinance

Est. cash available

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Rent

$3,055/mo

Redfin rental estimate

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Market trends in 91765, CA

Last updated October 2026

Buyer's Market

Seller's Market

Balanced market

Sale-to-list price

97.1%

0.7% MoM

Median sale price

$1.1M

$19K MoM

Avg. days on market

67d

6 days MoM

Recently sold homes

11 MoM

New listings for sale

$1,450,000
3 beds3.5 baths2,716 sq ft
23843 Gold Rush Dr, Diamond Bar, CA 91765
OPEN SAT
$1,249,000
5 beds3 baths2,240 sq ft
233 N Platina, Diamond Bar, CA 91765
COMING SOON
$3,300,000
6 beds9 baths10,352 sq ft
2677 Wagon Train, Diamond Bar, CA 91765
$595,000
2 beds2 baths1,191 sq ft
1120 Cleghorn Unit C, Diamond Bar, CA 91765
LISTED BY REDFIN
$4,980,000
7 beds7.5 baths7,660 sq ft
2611 Steeplechase Ln, Diamond Bar, CA 91765
$1,079,000
4 beds3 baths2,126 sq ft
23548 Casa Loma, Diamond Bar, CA 91765
$430,000
2 beds2 baths788 sq ft
22761 Lakeway #414, Diamond Bar, CA 91765
$800,000
3 beds3 baths1,720 sq ft
2002 Silver Hawk #14, Diamond Bar, CA 91765
$438,000
2 beds2 baths934 sq ft
22820 Hilton Head #78, Diamond Bar, CA 91765
Golden Nest Realty Group
3D WALKTHROUGH
$1,150,000
5 beds3 baths2,204 sq ft
23917 Decorah, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 448 ROCK Riv

Date

Event

Price

CRMLS #CV25078071

Oct 6, 2025

Listing Removed

—

Sep 25, 2025

Price Changed

$858,000

$617/sq ft

Jul 23, 2025

Price Changed

$868,000

$624/sq ft

Jun 24, 2025

Price Changed

$882,500

$634/sq ft

Jun 10, 2025

Price Changed

$885,000

$636/sq ft

May 23, 2025

Price Changed

$888,000

$638/sq ft

Apr 9, 2025

Listed

$900,000

$647/sq ft

CRMLS #C258184

Feb 3, 2003

Sold

$280,000

$201/sq ft

Nov 20, 2002

Listed

$279,999

$201/sq ft

Public Records

Jul 19, 1993

Sold

$173,000

$124/sq ft

Public Records

Aug 15, 1989

Sold

$198,000

$142/sq ft

Public Records

Dec 17, 1987

Sold

$137,500

$99/sq ft

Public Records

Jul 31, 1987

Sold

$118,500

$85/sq ft

Public Records

Mar 23, 1981

Sold

$88,000

$63/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$5,818 (+8.1%)

$295,301 + $118,315

$413,616

2024

$5,384 (+2.9%)

$289,511 + $115,996

$405,507

2023

$5,233 (+2.6%)

$283,835 + $113,722

$397,557

2022

$5,100 (+2.3%)

$278,270 + $111,493

$389,763

2021

$4,985 (+0.4%)

$272,814 + $109,307

$382,121

2020

$4,966 (−2.3%)

$267,465 + $107,164

$374,629

2019

$5,084 (+8.6%)

$264,723 + $106,066

$370,789

2018

$4,683 (+1.8%)

$259,533 + $103,987

$363,520

2017

$4,599 (+4.7%)

$249,456 + $99,950

$349,406

2016

$4,394 (+0.9%)

$249,456 + $99,950

$349,406

2015

$4,356 (+0.7%)

$244,565 + $97,991

$342,556

2014

$4,327 (+0.7%)

$236,174 + $94,630

$330,804

2012

$4,297 (+3.1%)

$235,107 + $94,203

$329,310

2011

$4,166 (+0.6%)

$230,498 + $92,356

$322,854

2010

$4,140 (+2.7%)

$225,979 + $90,546

$316,525

2009

$4,030 (+5.0%)

$224,291 + $89,870

$314,161

2008

$3,839

$224,824 + $90,084

$314,908

Tax history for 448 ROCK Riv

Year

Property tax

Land + Additions

Assessment*

2025

$5,818 (+8.1%)

$295,301 + $118,315

$413,616

2024

$5,384 (+2.9%)

$289,511 + $115,996

$405,507

2023

$5,233 (+2.6%)

$283,835 + $113,722

$397,557

2022

$5,100 (+2.3%)

$278,270 + $111,493

$389,763

2021

$4,985 (+0.4%)

$272,814 + $109,307

$382,121

2020

$4,966 (−2.3%)

$267,465 + $107,164

$374,629

2019

$5,084 (+8.6%)

$264,723 + $106,066

$370,789

2018

$4,683 (+1.8%)

$259,533 + $103,987

$363,520

2017

$4,599 (+4.7%)

$249,456 + $99,950

$349,406

2016

$4,394 (+0.9%)

$249,456 + $99,950

$349,406

2015

$4,356 (+0.7%)

$244,565 + $97,991

$342,556

2014

$4,327 (+0.7%)

$236,174 + $94,630

$330,804

2012

$4,297 (+3.1%)

$235,107 + $94,203

$329,310

2011

$4,166 (+0.6%)

$230,498 + $92,356

$322,854

2010

$4,140 (+2.7%)

$225,979 + $90,546

$316,525

2009

$4,030 (+5.0%)

$224,291 + $89,870

$314,161

2008

$3,839

$224,824 + $90,084

$314,908

*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

8,359

Year renovated

1971

Sq. Ft.

1,391

Year built

1971

Style

Single Family Residential

County

Los Angeles County

APN

8718027019

Parking Spaces

Basement

Accessible

HOA Dues

—

Garage

Yes

Features

Views

Last updated by owner on Nov 18, 2021.

RLM

Low/Medium Density Residential District

The RLM zoning district is intended primarily for existing subdivided areas developed with detached single-family dwellings. The maximum allowed density for new residential subdivisions within this zoning district will be five dwellings per gross acre. The RLM zoning district is consistent with the low density residential land use category of the general plan.

Permitted uses

Include but are not limited to:

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: 2
Garage Door Opener
Has Parking

Interior

Laundry Information
Has Laundry
Area, Gas Dryer Hookup

Kitchen Information
Appliances: Free Standing, Gas Cooking
Has Appliances

Cooling Information
Central
Has Cooling

Flooring Information
Carpet, Tile

Heating Information
Forced Air
Has Heating

Interior Features
Levels: One
Spa Features: See Remarks
Has Spa

Exterior

Exterior Information
Roof: Clay, Composition, Shingle, Spanish Tile

Exterior Features
Pool Features: None
Has Sprinklers

Lot Information
Lot Size Source: Assessor's Data
Lot Features: Sprinklers In Front, Sprinklers In Rear, Yard

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8718027019
Property Condition: Termite Clearance
Has View

Utilities

Utilities Information
Electric: 220V In Garage, 220V In Laundry
Sewer: Sewer Paid
Cable Available, Sewer Connected
Water Source: District/Public

Location

Location Information
Latitude: 34.02850200
Longitude: -117.81639800

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,391
Stories: —
Parking Spaces: 2
Basement: No
Accessible: No
Lot Size: 8,359 square feet
Style: Single Family Residential
Year Built: 1971
Year Renovated: 1971
County: Los Angeles County
APN: 8718027019
HOA Dues: —
Garage: Yes
Features: Views

Home facts updated by owner on Nov 18, 2021

Other

Miscellaneous Information
Exclusions: SELLER MOTIVATED - FAX ALL OFFERS TO 909-592-1437

Listing Information
Days Active in MLS: 42
Continuous Days Active in MLS: 42

Listing Agent Information
List Agent First Name: JOAN
List Agent Last Name: DASTE

Listing Office Information
List Office Name: CENTURY 21 CITRUS

Selling Agent Information
Buyer Agent First Name: ERNIE/MICHEL
Buyer Agent Last Name: DELGADILLO

Selling Office Information
Buyer Office Name: FIRST TEAM SNS - DIA

Around this home

Schools

K - 12
Preschool & daycare

Armstrong Elementary School

Public K-6 • Assigned • 0.4mi

5/10

Lorbeer Middle School

Public 7-8 • Assigned • 0.6mi

5/10

Diamond Ranch High School

Public 9-12 • Assigned • 2.4mi

8/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

The Diamond Bar market is shifting, creating new opportunities for both buyers and sellers. Buyers have a bit more negotiating room, while well-priced, well-maintained homes can still attract strong interest. If you’re considering a move, I’d be...
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124 deals
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Climate risks

1/10 Flood Factor

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

3/10 Fire Factor

0.15% 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 10.1 hours in June and 6.8 hours in December, placing it above the U.S. average for solar exposure.

10.1 hrs

6.8 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$823,000 – $997,000

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Golden Nest Realty Group

Home values near 448 ROCK Riv

Data from public records.

Address	Redfin Estimate
469 S Rock River Road, Diamond Bar, CA 6 Beds \| 4 Baths \| 2712 Sq. Ft.	$1,085,847
484 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1391 Sq. Ft.	$724,192
466 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1391 Sq. Ft.	$857,706
442 S Rock River Road, Diamond Bar, CA 4 Beds \| 3 Baths \| 1440 Sq. Ft.	$826,272
424 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1476 Sq. Ft.	$933,164
415 S Rock River Road, Diamond Bar, CA 3 Beds \| 3 Baths \| 2440 Sq. Ft.	$1,033,941
433 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1541 Sq. Ft.	$853,750

Address	Redfin Estimate
475 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 2176 Sq. Ft.	$914,609
478 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1476 Sq. Ft.	$839,069
462 S Rock River Road, Diamond Bar, CA 4 Beds \| - Baths \| 1349 Sq. Ft.	$837,986
436 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1476 Sq. Ft.	$859,517
418 S Rock River Road, Diamond Bar, CA 3 Beds \| - Baths \| 1440 Sq. Ft.	$865,666
421 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1476 Sq. Ft.	$863,559
439 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1541 Sq. Ft.	$909,530

Address	Redfin Estimate
481 S Rock River Road, Diamond Bar, CA 2 Beds \| - Baths \| 1240 Sq. Ft.	$777,161
472 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1349 Sq. Ft.	$843,018
454 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1828 Sq. Ft.	$981,924
430 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1391 Sq. Ft.	$841,133
414 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1740 Sq. Ft.	$841,860
427 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1440 Sq. Ft.	$863,188
445 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1391 Sq. Ft.	$873,082

Property information provided by CRMLS when last listed in 2002. This data may not show owner updates. Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 91765, CA

Sale history for 448 ROCK Riv

Tax history for 448 ROCK Riv

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 91765

Home values near 448 ROCK Riv

More real estate resources