3056 Castle Rock Rd, Diamond Bar, CA 91765

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Off market aug 2007 for $550K

$1,070,767

Est. refi paymentEst. refi $3,377/mo

•

— ba

•

2,020

sq ft

3056 Castle Rock Rd, Diamond Bar, CA 91765

About this home

Single-familyProperty Type

1963Year Built

$530Est. Price/Sq.Ft.

2 car garageParking

Listed by Jim Arnold •DRE #01136787 • Century 21 Masters

Bought with Michael Li •DRE #00880478 • High Ten Partners Inc

Redfin checked: 2 minutes ago

•Source:CRMLS #H07090574

Redfin Estimate

$1,070,767

$521K since sold in August 2007$38K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 13.2% lower than the average sale price ($1.23M) of 6 comparable homes.

SOLD MAY 14, 2026
$1,330,000
A
4 beds3 baths2,037 sq ft
3357 Bent Twig, Diamond Bar, CA 91765
SOLD AUG 18, 2026
$1,040,000
B
4 beds3 baths1,954 sq ft
19721 Katrine Cir, Walnut, CA 91789
ReMax 2000 Realty
SOLD SEP 9, 2026
$1,234,520
C
4 beds2.5 baths1,823 sq ft
2115 Tierra Loma Dr, Diamond Bar, CA 91765
SOLD APR 17, 2026
$1,488,000
D
4 beds3 baths2,426 sq ft
20573 Missionary Ridge St, Walnut, CA 91789
SOLD APR 17, 2026
$1,388,000
E
5 beds3 baths2,157 sq ft
21030 Riego, Diamond Bar, CA 91765
SOLD SEP 4, 2026
$920,000
F
4 beds3 baths1,802 sq ft
1935 Walnut Leaf, Walnut, CA 91789

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Earn from this home

Sell

$792,673

Est. take-home

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Refinance

Est. cash available

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Rent

$3,767/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

98.5%

0.6% MoM

Median sale price

$1.1M

$10K MoM

Avg. days on market

43d

1 days MoM

Recently sold homes

100

5 MoM

New listings for sale

COMING SOON
$899,000
3 beds2 baths1,274 sq ft
22922 Dry Crk, Diamond Bar, CA 91765
OPEN SUN, 3PM TO 5PM
$1,499,900
5 beds3 baths3,203 sq ft
24215 Delta Dr, Diamond Bar, CA 91765
$468,000
2 beds2.5 baths1,056 sq ft
22871 Hilton Head Dr #230, Diamond Bar, CA 91765
OPEN SUN, 11AM TO 3PM
$1,363,000
4 beds5 baths2,430 sq ft
883 Terrace W, Pomona, CA 91765
$1,050,000
4 beds2 baths1,859 sq ft
23547 Decorah, Diamond Bar, CA 91765
$1,080,000
4 beds2 baths1,600 sq ft
239 N Palo Cedro, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 4PM
$1,250,000
4 beds3 baths2,522 sq ft
830 Coldstream Ct, Diamond Bar, CA 91765
OPEN SUN, 2PM TO 4PM
$1,000,000
3 beds2 baths1,436 sq ft
23433 Quail Summit Dr, Diamond Bar, CA 91765
OPEN SUN, 1PM TO 4PM
$1,595,000
5 beds3 baths3,203 sq ft
1112 Summitridge, Diamond Bar, CA 91765
OPEN SUN, 2PM TO 5PM
$2,490,000
5 beds3 baths6,144 sq ft
2145 Indian Crk, Diamond Bar, CA 91765
RE/MAX Galaxy
See all

Provided by Redfin

Sale history for 3056 Castle Rock Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,249 (+5.3%)

$577,940 + $144,477

$722,417

2024

$8,784 (+2.5%)

$577,940 + $144,477

$722,417

2023

$8,573 (+2.1%)

$566,608 + $141,645

$708,253

2022

$8,394 (+1.9%)

$555,499 + $138,868

$694,367

2021

$8,236 (+1.3%)

$544,607 + $136,146

$680,753

2020

$8,131 (+2.0%)

$533,929 + $133,477

$667,406

2019

$7,975 (+4.2%)

$528,455 + $132,109

$660,564

2018

$7,652 (+4.8%)

$518,094 + $129,519

$647,613

2017

$7,301 (+88.7%)

$497,977 + $124,491

$622,468

2016

$3,869

$497,977 + $124,491

$622,468

2015

$3,869

$488,213 + $122,050

$610,263

2010

$3,869

$440,000 + $110,000

$550,000

2009

$3,870

$440,000 + $110,000

$550,000

2008

$3,870

$440,000 + $110,000

$550,000

Tax history for 3056 Castle Rock Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,249 (+5.3%)

$577,940 + $144,477

$722,417

2024

$8,784 (+2.5%)

$577,940 + $144,477

$722,417

2023

$8,573 (+2.1%)

$566,608 + $141,645

$708,253

2022

$8,394 (+1.9%)

$555,499 + $138,868

$694,367

2021

$8,236 (+1.3%)

$544,607 + $136,146

$680,753

2020

$8,131 (+2.0%)

$533,929 + $133,477

$667,406

2019

$7,975 (+4.2%)

$528,455 + $132,109

$660,564

2018

$7,652 (+4.8%)

$518,094 + $129,519

$647,613

2017

$7,301 (+88.7%)

$497,977 + $124,491

$622,468

2016

$3,869

$497,977 + $124,491

$622,468

2015

$3,869

$488,213 + $122,050

$610,263

2010

$3,869

$440,000 + $110,000

$550,000

2009

$3,870

$440,000 + $110,000

$550,000

2008

$3,870

$440,000 + $110,000

$550,000

*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

8,185 Sq. Ft.

Year renovated

1963

Sq. Ft.

2,020

Year built

1963

Style

Single Family Residential

County

Los Angeles County

APN

8285023007

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 31, 2026.

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, See Remarks
Has Parking

Interior

Laundry Information
Has Laundry
Inside

Kitchen Information
Formal Dining Room

Cooling Information
Central
Has Cooling

Fireplace Information
Living Room, Gas, Wood
Has Fireplace

Flooring Information
See Remarks

Heating Information
Forced Air
Has Heating

Interior Features
Levels: One

Exterior

Exterior Information
Roof: Asphalt, Shingle

Exterior Features
Patio And Porch Features: None
Pool Features: None

Property Information
Living Area Source: Assessor's Data
Parcel Number: 8285023007

Financial

Assesments Information
Assessments: Unknown

Location

Location Information
Latitude: 33.97104400
Longitude: -117.84366700

Public facts

Beds: 4
Baths: 3.0
Sq. Ft.: 2,020
Stories: —
Lot Size: 8,185 square feet
Style: Single Family Residential
Year Built: 1963
Year Renovated: 1963
County: Los Angeles County
APN: 8285023007

Home facts updated by county records on Aug 31, 2026

Other

Listing Information
Days Active in MLS: 10
Continuous Days Active in MLS: 10

Listing Agent Information
List Agent First Name: Jim
List Agent Last Name: Arnold

Listing Office Information
List Office Name: C-21 Masters

Selling Agent Information
Buyer Agent First Name: Michael
Buyer Agent Last Name: Li

Selling Office Information
Buyer Office Name: Coldwell Banker George Realty

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.1mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 1.5mi

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

6/10 Flood Factor

Estimated 67-75% chance of a flood reaching the building in the next 30 years

5/10 Fire Factor

4% 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

$1.02M – $1.23M

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New listings for sale in 91765

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OPEN SUN, 3PM TO 5PM

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883 Terrace W, Pomona, CA 91765

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Home values near 3056 Castle Rock Rd

Data from public records.

Address	Redfin Estimate
3102 Castle Rock Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1252 Sq. Ft.	$848,468
3062 Castle Rock Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1844 Sq. Ft.	$1,018,730

Address	Redfin Estimate
3076 Castle Rock Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1280 Sq. Ft.	$862,920
3050 Castle Rock Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1803 Sq. Ft.	$984,016

Address	Redfin Estimate
3070 Castle Rock Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 2061 Sq. Ft.	$1,109,407
3042 Castle Rock Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1280 Sq. Ft.	$943,134

Property information provided by CRMLS when last listed in 2007. 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 3056 Castle Rock Rd

Tax history for 3056 Castle Rock Rd

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 3056 Castle Rock Rd

More real estate resources