3728 Castle Rock Rd, Diamond Bar, CA 91765

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Off market aug 2022 for $850K

$962,855

Est. refi paymentEst. refi $3,887/mo

•

1,521

sq ft

3728 Castle Rock Rd, Diamond Bar, CA 91765

About this home

Charming Single Story Home with turnkey condition in a great neighborhood. Feature with 4 Bedrooms & 2 full bathrooms, Approx. 1521 sqft. Double door entry. Open floor plan. Bright & Airy. Spacious living room with fire place, formal dining room. Kitchen with new granite countertop, new paint on the cabinets. Ceramic tile throughout the house, laminate floor in all rooms. New tile roof. New exterior paint. Two sliding door from Living room & Master bedroom that over looks canyon view. Good size backyard which is great for BBQ'S and family gatherings. Attached 2 car garage. Laundry room in the garage. Convenient location to H mark, shopping center, restaurants, and Park. Close to Fwy 60 & 57. * * Walnut School District * * Castle Rock Elementary School, South Pointe Middle School, Diamond Bar High School.

Single-familyProperty Type

1963Year Built

7,253 sq ftLot Size

$633Est. Price/Sq.Ft.

2 car garageParking

Listed by Jonathan Lin •DRE #01299001 • RE/MAX 2000 REALTY

Bought with Derrick Ho •DRE #01364360 • D&A Realty and Mortgage Inc.

Redfin checked: 3 minutes ago

•Source:CRMLS #CV22129828

Redfin Estimate

$962,855

$113K since sold in August 2022$10K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 0.7% higher than the average sale price ($956K) of 6 comparable homes.

SOLD SEP 17, 2026
$930,000
A
3 beds2 baths1,300 sq ft
2726 Castle Rock, Diamond Bar, CA 91765
SOLD JUL 31, 2026
$975,000
B
3 beds2 baths1,300 sq ft
2606 Castle Rock Rd, Diamond Bar, CA 91765
Synergy Real Estate
SOLD JUL 31, 2026
$875,000
C
3 beds2 baths1,300 sq ft
21245 Cold Spg, Diamond Bar, CA 91765
SOLD FEB 27, 2026
$1,030,000
D
4 beds2 baths1,756 sq ft
2710 Castle Rock Rd, Diamond Bar, CA 91765
SOLD OCT 31, 2025
$948,880
E
4 beds2 baths1,662 sq ft
3702 Crooked Creek Dr, Diamond Bar, CA 91765
SOLD JAN 21, 2026
$980,000
F
4 beds2 baths1,288 sq ft
2819 Castle Rock, Diamond Bar, CA 91765

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Earn from this home

Sell

$282,605

Est. take-home

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Refinance

Est. cash available

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Rent

$3,137/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

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RE/MAX Galaxy
See all

Provided by Redfin

Sale history for 3728 Castle Rock Rd

Date

Event

Price

CRMLS #CV22129828

Aug 5, 2022

Sold

$850,000

$559/sq ft

Jul 8, 2022

Contingent

—

Jun 15, 2022

Listed

$860,000

$565/sq ft

CRMLS #H10088629

Oct 18, 2010

Listing Removed

—

Sep 9, 2010

Price Changed

$458,000

$301/sq ft

Aug 18, 2010

Listed

$468,000

$308/sq ft

CRMLS #S544845

Oct 22, 2008

Sold

$420,000

$276/sq ft

Oct 20, 2008

Listing Removed

—

Sep 11, 2008

Contingent

—

Aug 20, 2008

Listed

$429,000

$282/sq ft

CRMLS #P609727

Dec 2, 2007

Listing Removed

—

Nov 13, 2007

Listed

$530,000

$348/sq ft

CRMLS #P576537

Nov 8, 2007

Listing Removed

—

Jun 22, 2007

Price Changed

$579,000

$381/sq ft

Jun 6, 2007

Price Changed

$599,000

$394/sq ft

May 9, 2007

Listed

$612,000

$402/sq ft

CRMLS #P315267

Nov 30, 2002

Sold

$310,000

$204/sq ft

Oct 14, 2002

Listed

$319,000

$210/sq ft

Public Records

May 13, 1987

Sold

$124,000

$82/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$11,332 (+5.6%)

$707,472 + $176,868

$884,340

2024

$10,736 (+3.4%)

$707,472 + $176,868

$884,340

2023

$10,379 (+60.9%)

$693,600 + $173,400

$867,000

2022

$6,450 (+1.9%)

$680,000 + $170,000

$850,000

2021

$6,330 (+1.3%)

$342,926 + $166,730

$509,656

2020

$6,250 (+1.9%)

$336,202 + $163,461

$499,663

2019

$6,131 (+4.1%)

$332,755 + $161,785

$494,540

2018

$5,892 (+4.7%)

$326,231 + $158,613

$484,844

2017

$5,625 (+3.0%)

$313,564 + $152,454

$466,018

2016

$5,462 (−0.6%)

$313,564 + $152,454

$466,018

2015

$5,494 (−0.1%)

$307,416 + $149,465

$456,881

2014

$5,502 (+17.8%)

$296,868 + $144,337

$441,205

2012

$4,669 (−11.7%)

$291,300 + $141,700

$433,000

2011

$5,285 (+0.8%)

$244,900 + $119,100

$364,000

2010

$5,244 (+0.3%)

$284,052 + $138,106

$422,158

2009

$5,228 (+24.2%)

$281,930 + $137,074

$419,004

2008

$4,208

$282,600 + $137,400

$420,000

Tax history for 3728 Castle Rock Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,332 (+5.6%)

$707,472 + $176,868

$884,340

2024

$10,736 (+3.4%)

$707,472 + $176,868

$884,340

2023

$10,379 (+60.9%)

$693,600 + $173,400

$867,000

2022

$6,450 (+1.9%)

$680,000 + $170,000

$850,000

2021

$6,330 (+1.3%)

$342,926 + $166,730

$509,656

2020

$6,250 (+1.9%)

$336,202 + $163,461

$499,663

2019

$6,131 (+4.1%)

$332,755 + $161,785

$494,540

2018

$5,892 (+4.7%)

$326,231 + $158,613

$484,844

2017

$5,625 (+3.0%)

$313,564 + $152,454

$466,018

2016

$5,462 (−0.6%)

$313,564 + $152,454

$466,018

2015

$5,494 (−0.1%)

$307,416 + $149,465

$456,881

2014

$5,502 (+17.8%)

$296,868 + $144,337

$441,205

2012

$4,669 (−11.7%)

$291,300 + $141,700

$433,000

2011

$5,285 (+0.8%)

$244,900 + $119,100

$364,000

2010

$5,244 (+0.3%)

$284,052 + $138,106

$422,158

2009

$5,228 (+24.2%)

$281,930 + $137,074

$419,004

2008

$4,208

$282,600 + $137,400

$420,000

*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

7,255 Sq. Ft.

Year renovated

1963

Sq. Ft.

1,521

Year built

1963

Style

Single Family Residential

County

Los Angeles County

APN

8714017011

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Aug 30, 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
# of Parking Spaces: 2

Interior

Laundry Information
Has Laundry
In Garage

Bathroom Information
# of Baths (Full): 2

Cooling Information
Central
Has Cooling

Room Information
Living Room, Primary Bathroom, Primary Bedroom

Fireplace Information
Living Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: One
Main Level Bathrooms: 2
Main Level Bedrooms: 4

Exterior

Exterior Information
Structure Type: House
Roof: Tile

Exterior Features
Pool Features: None

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: 0-1 Unit/Acre

Property Information
Total # of Units: 1
Common Walls: 2+ common walls
Living Area Source: Assessor's Data
Parcel Number: 8714017011
Attached Property
Has View
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

Utilities Information
Sewer: Public Sewer
Water Source: District/Public

Location

Neighborhood Information
Community Features: Urban

School Information
Elementary School: Castle Rock
Middle Or Junior School: South Pointe
High School: Diamond Bar
High School District: Walnut Valley Unified
Elementary School 2: CASROC
Middle Or Junior School 2: SOUPOI
High School 2: DIABAR

Location Information
Latitude: 33.96230100
Longitude: -117.85135400
Directions: Between S. Brea Canyon Rd & Silver Bullet Dr.
Zoning: LCR17500*

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,521
Stories: —
Lot Size: 7,255 square feet
Style: Single Family Residential
Year Built: 1963
Year Renovated: 1963
County: Los Angeles County
APN: 8714017011

Home facts updated by county records on Aug 30, 2026

Other

Listing Information
Days Active in MLS: 23
Continuous Days Active in MLS: 23

Listing Agent Information
List Agent First Name: JONATHAN
List Agent Last Name: LIN

Listing Office Information
List Office Name: RE/MAX 2000 REALTY

Selling Agent Information
Buyer Agent First Name: Derrick
Buyer Agent Last Name: Ho

Selling Office Information
Buyer Office Name: D&A Realty and Mortgage Inc.

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.8mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 2.0mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 1.5mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Climate risks

5/10 Flood Factor

Estimated 41-55% chance of a flood reaching the building in the next 30 years

5/10 Fire Factor

7% chance of being in a wildfire in next 30 years

6/10 Heat Factor

7 days above 99° expected this year, 21 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

13 unhealthy days expected this year, 14 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

$915,000 – $1.11M

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Home values near 3728 Castle Rock Rd

Data from public records.

Address	Redfin Estimate
3637 Castle Rock Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1724 Sq. Ft.	$875,279
3711 Castle Rock Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1521 Sq. Ft.	$862,289

Address	Redfin Estimate
3645 Castle Rock Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1448 Sq. Ft.	$875,703
3719 Castle Rock Road, Diamond Bar, CA 4 Beds \| - Baths \| 2164 Sq. Ft.	$1,020,864

Address	Redfin Estimate
3705 Castle Rock Road, Diamond Bar, CA 4 Beds \| 2 Baths \| 1724 Sq. Ft.	$949,748
3725 Castle Rock Road, Diamond Bar, CA 3 Beds \| 2 Baths \| 1448 Sq. Ft.	$845,698

Property information provided by CRMLS when last listed in 2022. 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 3728 Castle Rock Rd

Tax history for 3728 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 3728 Castle Rock Rd

More real estate resources