278 S Rock River Rd, Diamond Bar, CA 91765

Off market may 2024 for $860K

$925,463

Est. refi paymentEst. refi $5,468/mo

•

2 ba

•

1,465

sq ft

278 S Rock River Rd, Diamond Bar, CA 91765

About this home

PRICE REDUCED! This spacious and move in ready 4 bedroom / 2 bath home can be yours! Dual pane windows throughout! Kitchen boasts stainless steel appliances, including refrigerator! Living room has wood burning fireplace and recessed lighting. Newer A/C Unit and Furnace. Electrical panel has been upgraded. All bedrooms are a perfect size with ceiling fans and freshly cleaned carpets. Bathrooms have been tastefully remodeled. Backyard is landscaped and ready for those summer BBQs on the patio. Washer and Dryer also included with sale of home. Home's backyard backs against 57 Freeway. Conveniently located to freeways, schools, and stores.

Single-familyProperty Type

1964Year Built

6,584 sq ftLot Size

$632Est. Price/Sq.Ft.

2 car garageParking

Listed by Zoram Luna •DRE #01743140 • RE/MAX TIME REALTY

Bought with Liane Thomas •DRE #01704162 • Allison James of California

Source:CRMLS #CV18098969

Redfin Estimate

$925,463

$65K since sold in May 2024$7,000 since October

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 5.7% higher than the average sale price ($875K) of 5 comparable homes.

SOLD OCT 8, 2026
$755,000
A
4 beds2 baths1,386 sq ft
22928 Beaverhead Dr, 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 JUL 24, 2026
$945,000
C
4 beds2 baths1,503 sq ft
23905 Cholame, 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 SEP 29, 2026
$960,000
E
4 beds2 baths1,404 sq ft
22941 Dry Crk, Diamond Bar, CA 91765

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Earn from this home

Sell

$217,238

Est. take-home

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Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,241/mo

Redfin rental estimate

List your home for rent

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

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
$990,000
3 beds3 baths1,972 sq ft
23266 Forest Cyn, Diamond Bar, CA 91765
See all

Provided by Redfin

Sale history for 278 S Rock River Rd

Date

Event

Price

Public Records

May 14, 2024

Sold

$860,000

$587/sq ft

Greater Lansing AoR #CV18098969

Aug 29, 2018

Sold

$520,000

$355/sq ft

Jul 27, 2018

Pending

—

Jun 29, 2018

Price Changed

$545,000

$372/sq ft

May 30, 2018

Price Changed

$554,900

$379/sq ft

Apr 29, 2018

Listed

$545,000

$372/sq ft

Apr 29, 2018

Listed

$549,900

$375/sq ft

CRMLS #S588437

Nov 2, 2009

Sold

$380,000

$259/sq ft

Oct 22, 2009

Pending

—

Sep 16, 2009

Pending

—

Sep 7, 2009

Listed

$350,000

$239/sq ft

Public Records

Mar 30, 2007

Sold

$565,000

$386/sq ft

Public Records

Jun 14, 1996

Sold

$150,500

$103/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$11,757 (+58.9%)

$710,801 + $183,942

$894,743

2024

$7,399 (+2.0%)

$696,864 + $180,336

$877,200

2023

$7,256 (+1.6%)

$454,954 + $113,737

$568,691

2022

$7,144 (+2.2%)

$446,034 + $111,507

$557,541

2021

$6,987 (+0.3%)

$437,289 + $109,321

$546,610

2020

$6,964 (−2.5%)

$428,715 + $107,178

$535,893

2019

$7,140 (+29.3%)

$424,320 + $106,080

$530,400

2018

$5,522 (+1.8%)

$416,000 + $104,000

$520,000

2017

$5,425 (+4.6%)

$247,577 + $163,938

$411,515

2016

$5,185 (+0.9%)

$247,577 + $163,938

$411,515

2015

$5,141 (+0.7%)

$242,723 + $160,724

$403,447

2014

$5,105 (+0.6%)

$234,395 + $155,209

$389,604

2012

$5,076 (+3.1%)

$233,336 + $154,508

$387,844

2011

$4,922 (+0.6%)

$228,761 + $151,479

$380,240

2010

$4,893 (+7.4%)

$224,276 + $148,509

$372,785

2009

$4,555 (−36.2%)

$222,600 + $147,400

$370,000

2008

$7,145

$278,000 + $75,100

$353,100

Tax history for 278 S Rock River Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,757 (+58.9%)

$710,801 + $183,942

$894,743

2024

$7,399 (+2.0%)

$696,864 + $180,336

$877,200

2023

$7,256 (+1.6%)

$454,954 + $113,737

$568,691

2022

$7,144 (+2.2%)

$446,034 + $111,507

$557,541

2021

$6,987 (+0.3%)

$437,289 + $109,321

$546,610

2020

$6,964 (−2.5%)

$428,715 + $107,178

$535,893

2019

$7,140 (+29.3%)

$424,320 + $106,080

$530,400

2018

$5,522 (+1.8%)

$416,000 + $104,000

$520,000

2017

$5,425 (+4.6%)

$247,577 + $163,938

$411,515

2016

$5,185 (+0.9%)

$247,577 + $163,938

$411,515

2015

$5,141 (+0.7%)

$242,723 + $160,724

$403,447

2014

$5,105 (+0.6%)

$234,395 + $155,209

$389,604

2012

$5,076 (+3.1%)

$233,336 + $154,508

$387,844

2011

$4,922 (+0.6%)

$228,761 + $151,479

$380,240

2010

$4,893 (+7.4%)

$224,276 + $148,509

$372,785

2009

$4,555 (−36.2%)

$222,600 + $147,400

$370,000

2008

$7,145

$278,000 + $75,100

$353,100

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

Zoning

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

Interior

Heating & Cooling
Air Conditioning Type: Central
Heating Type: Central

Exterior

Property Information
Subdivision Name: 28429
Living Sq. Ft: 1,465
# of Units: 1
Legal Description: TRACT NO 28429 LOT 13

Lot Information
# of Buildings: 1
Land Sq. Ft: 6,584
Legal Lot Number: 13
Municipality Name: DIAMOND BAR
Acres: 0.1511
Depth Footage: 100
Front Footage: 67
Zoning Code: LCR18000*
County Use Description: SINGLE FAMILY RESID

Utility Information
Water Service Type: Public

Financial

Assessor Information
Assessment Year: 2026

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 1,465
Stories: —
Lot Size: 6,584 square feet
Style: Single Family Residential
Year Built: 1964
Year Renovated: 1964
County: Los Angeles County
APN: 8718034011

Home facts updated by county records on Oct 7, 2026

Around this home

Schools

K - 12
Preschool & daycare

Armstrong Elementary School

Public K-6 • Assigned • 0.1mi

5/10

Lorbeer Middle School

Public 7-8 • Assigned • 0.4mi

5/10

Diamond Ranch High School

Public 9-12 • Assigned • 2.1mi

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...
2 weeks ago • Diamond Bar
Sang Ur
Redfin Premier agent
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

2/10 Fire Factor

0.00% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 98° expected this year, 19 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

$880,000 – $1.07M

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Nearby similar homes

OPEN SAT

$1,249,000

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233 N Platina, Diamond Bar, CA 91765

0.38 acre lot • 2 garage spots • Community pool

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Panoramic views • Oversized loft • 3,500 sq ft lot

NEW CONSTRUCTION3D WALKTHROUGH

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CBC Sales Corporation

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8,142 sq ft lot • 2 garage spots • Built 1961

3D WALKTHROUGH

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0.28 acre lot • 3 garage spots • Built 1987

New listings for sale in 91765

OPEN SAT

$1,249,000

5 beds3 baths2,240 sq ft

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0.38 acre lot • 2 garage spots • Community pool

COMING SOON

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LISTED BY REDFINVIDEO TOUR

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2611 Steeplechase Ln, Diamond Bar, CA 91765

Gated community • German-style manor • Architectural gem

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23548 Casa Loma, Diamond Bar, CA 91765

Crown molding • Updated lighting • Recessed lights

$430,000

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22761 Lakeway #414, Diamond Bar, CA 91765

Private balcony • Updated kitchen • Breakfast bar

$800,000

3 beds3 baths1,720 sq ft

2002 Silver Hawk #14, Diamond Bar, CA 91765

Wood flooring • Private loft • Private backyard

$438,000

2 beds2 baths934 sq ft

22820 Hilton Head #78, Diamond Bar, CA 91765

Guard gated entrance • Three swimming pools • Four tennis courts

Golden Nest Realty Group

3D WALKTHROUGH

$1,150,000

5 beds3 baths2,204 sq ft

23917 Decorah, Diamond Bar, CA 91765

Solar system • Spacious backyard • Charming gazebo

Home values near 278 S Rock River Rd

Data from public records.

Address	Redfin Estimate
317 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1369 Sq. Ft.	$889,823
273 S Rock River Road, Diamond Bar, CA 5 Beds \| 2 Baths \| 1848 Sq. Ft.	$911,011
253 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$757,193
293 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1322 Sq. Ft.	$864,424
228 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1258 Sq. Ft.	$719,392
250 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$869,127
270 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$834,398

Address	Redfin Estimate
285 S Rock River Road, Diamond Bar, CA 5 Beds \| 2 Baths \| 1848 Sq. Ft.	$921,300
267 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$864,405
245 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$836,304
239 N Rock River Drive, Diamond Bar, CA 5 Beds \| 2 Baths \| 1848 Sq. Ft.	$913,913
236 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1258 Sq. Ft.	$879,039
256 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1258 Sq. Ft.	$748,372
284 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1927 Sq. Ft.	$890,914

Address	Redfin Estimate
279 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$844,615
259 S Rock River Road, Diamond Bar, CA 6 Beds \| 2 Baths \| 2436 Sq. Ft.	$947,113
289 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1577 Sq. Ft.	$863,849
233 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1500 Sq. Ft.	$861,326
244 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1465 Sq. Ft.	$639,772
262 S Rock River Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1258 Sq. Ft.	$689,092
308 S Rock River Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1577 Sq. Ft.	$833,810

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About this home

Redfin Estimate

Earn from this home

Market trends in 91765, CA

Sale history for 278 S Rock River Rd

Tax history for 278 S Rock River Rd

Zoning

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 278 S Rock River Rd

More real estate resources