3805 Castle Rock Rd, Diamond Bar, CA 91765

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Off market dec 2018 for $635K

$1,042,525

Est. refi paymentEst. refi $5,058/mo

•

2,100

sq ft

3805 Castle Rock Rd, Diamond Bar, CA 91765

About this home

NO NOISE! EXCELLENT WALNUT SCHOOL DISTRICT! DO NOT MISS THIS!! Corner Lot Home with Circular Drive plus RV/extra parking. Great location with desirable Diamond Bar neighborhood. Recently remodeled & upgraded throughout. 4 bedrooms, 2 bathrooms, 4 walk-in closets. ALL NEWER dual pane windows, electrical, light fixtures throughout. NEWER A/C, NEW auto yard sprinkler system, NEW kitchen with all NEWER stainless appliances, NEWER ceiling fan, NEWER knobs and fixtures, NEWER stucco and paint. Large patio and backyard. A variety of fruit tress: peach, plum, pomegranate, avocado, orange, pecan, etc. A MUST SEE!

Single-familyProperty Type

1963Year Built

10,227 sq ftLot Size

$496Est. Price/Sq.Ft.

2 car garageParking

Listed by EDWIN JIN •DRE #01943697 • WINMASTER REALTY, INC.

Listed by Han-Ni Chen •DRE #02050912 • WinMaster Realty Inc

Bought with Stefanie Cao •DRE #02051641 • Keller Williams Signature Realty

Redfin checked: a minute ago

•Source:CRMLS #WS18211557

Redfin Estimate

$1,042,525

$408K since sold in December 2018$19K since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 12.7% lower than the average sale price ($1.19M) of 6 comparable homes.

SOLD FEB 6, 2026
$1,300,000
A
4 beds2 baths1,831 sq ft
2463 Harmony Hl, Diamond Bar, CA 91765
SOLD SEP 9, 2026
$1,234,520
B
4 beds2.5 baths1,823 sq ft
2115 Tierra Loma Dr, Diamond Bar, CA 91765
SOLD MAY 4, 2026
$1,290,000
C
4 beds2 baths1,788 sq ft
1869 Morning Cyn, Diamond Bar, CA 91765
SOLD FEB 23, 2026
$1,200,000
D
4 beds2 baths2,268 sq ft
21128 Trigger, Diamond Bar, CA 91765
Coldwell Banker Realty
SOLD FEB 27, 2026
$1,030,000
E
4 beds2 baths1,756 sq ft
2710 Castle Rock Rd, Diamond Bar, CA 91765
SOLD SEP 28, 2026
$1,110,000
F
4 beds2 baths2,108 sq ft
3147 Fallow Fld, Diamond Bar, CA 91765

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Earn from this home

Sell

$557,961

Est. take-home

List your home with Redfin and save $5,213

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,383/mo

Redfin rental estimate

List your home for rent

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 3805 Castle Rock Rd

Date

Event

Price

CRMLS #WS18211557

Dec 15, 2018

Sold

$635,000

$302/sq ft

Nov 23, 2018

Pending

—

Oct 18, 2018

Contingent

—

Oct 18, 2018

Relisted

—

Oct 9, 2018

Price Changed

$680,000

$324/sq ft

Oct 9, 2018

Delisted

—

Oct 4, 2018

Relisted

—

Oct 4, 2018

Price Changed

$635,000

$302/sq ft

Sep 28, 2018

Relisted

—

Sep 28, 2018

Delisted

—

Sep 21, 2018

Delisted

—

Sep 20, 2018

Relisted

—

Sep 17, 2018

Delisted

—

Sep 13, 2018

Relisted

—

Sep 9, 2018

Delisted

—

Sep 7, 2018

Relisted

—

Sep 6, 2018

Delisted

—

Sep 5, 2018

Relisted

—

Aug 30, 2018

Delisted

—

Aug 29, 2018

Listed

$680,000

$324/sq ft

Aug 29, 2018

Listed

$599,900

$286/sq ft

NO NOISE! EXCELLENT WALNUT SCHOOL DISTRICT! DO NOT MISS THIS!! Corner Lot Home with Circular Drive plus RV/extra parking. Great location with desirable Diamond Bar neighborhood. Recently remodeled & upgraded throughout. 4 bedrooms, 2 bathrooms,4 walk-in closets. ALL NEWER dual pane windows, electrical, light fixtures throughout. NEWER A/C, NEW auto yard sprinkler system, NEW kitchen with all NEWER stainless appliances, NEWER ceiling fan, NEWER knobs and fixtures, NEWER stucco and paint. Large patio and backyard. A variety of fruit tress: peach, plum, pomegranate, avocado, orange, pecan, etc. A MUST SEE!

CRMLS #PW18117515

Aug 13, 2018

Listing Removed

—

May 16, 2018

Listed

$699,900

$333/sq ft

CRMLS #TR17245419

May 10, 2018

Listing Removed

—

Oct 27, 2017

Listed

$738,888

$352/sq ft

CRMLS #TR13185404

Jan 1, 2014

Listing Removed

—

Sep 12, 2013

Listed

$680,000

$324/sq ft

Public Records

Aug 6, 2013

Sold

$600,000

$286/sq ft

CRMLS #TR13110091

Aug 6, 2013

Listing Removed

—

Aug 6, 2013

Sold

$599,900

$286/sq ft

Jun 28, 2013

Pending

—

Jun 14, 2013

Pending

—

Jun 10, 2013

Listed

$599,900

$286/sq ft

Public Records

Jun 15, 1964

Sold

$21,000

$10/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$9,292 (+5.6%)

$564,897 + $143,452

$708,349

2024

$8,804 (+3.6%)

$564,897 + $143,452

$708,349

2023

$8,497 (+2.1%)

$553,821 + $140,640

$694,461

2022

$8,321 (+1.9%)

$542,962 + $137,883

$680,845

2021

$8,166 (+1.3%)

$532,316 + $135,180

$667,496

2020

$8,063 (+1.9%)

$521,879 + $132,530

$654,409

2019

$7,910 (+0.5%)

$516,528 + $131,172

$647,700

2018

$7,867 (+4.8%)

$506,400 + $128,600

$635,000

2017

$7,508 (+3.0%)

$414,047 + $219,591

$633,638

2016

$7,289 (−0.6%)

$414,047 + $219,591

$633,638

2015

$7,334 (−0.1%)

$405,929 + $215,286

$621,215

2014

$7,342 (+455.5%)

$392,000 + $207,900

$599,900

2012

$1,322 (+3.0%)

$20,478 + $60,307

$80,785

2011

$1,283 (+1.2%)

$20,077 + $59,125

$79,202

2010

$1,268 (+1.7%)

$19,684 + $57,966

$77,650

2009

$1,246 (+3.6%)

$19,537 + $57,533

$77,070

2008

$1,203

$19,584 + $57,670

$77,254

Tax history for 3805 Castle Rock Rd

Year

Property tax

Land + Additions

Assessment*

2025

$9,292 (+5.6%)

$564,897 + $143,452

$708,349

2024

$8,804 (+3.6%)

$564,897 + $143,452

$708,349

2023

$8,497 (+2.1%)

$553,821 + $140,640

$694,461

2022

$8,321 (+1.9%)

$542,962 + $137,883

$680,845

2021

$8,166 (+1.3%)

$532,316 + $135,180

$667,496

2020

$8,063 (+1.9%)

$521,879 + $132,530

$654,409

2019

$7,910 (+0.5%)

$516,528 + $131,172

$647,700

2018

$7,867 (+4.8%)

$506,400 + $128,600

$635,000

2017

$7,508 (+3.0%)

$414,047 + $219,591

$633,638

2016

$7,289 (−0.6%)

$414,047 + $219,591

$633,638

2015

$7,334 (−0.1%)

$405,929 + $215,286

$621,215

2014

$7,342 (+455.5%)

$392,000 + $207,900

$599,900

2012

$1,322 (+3.0%)

$20,478 + $60,307

$80,785

2011

$1,283 (+1.2%)

$20,077 + $59,125

$79,202

2010

$1,268 (+1.7%)

$19,684 + $57,966

$77,650

2009

$1,246 (+3.6%)

$19,537 + $57,533

$77,070

2008

$1,203

$19,584 + $57,670

$77,254

*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

10,227

Year renovated

1963

Sq. Ft.

2,100

Year built

1963

Style

Single Family Residential

County

Los Angeles County

APN

8714017014

Parking Spaces

Basement

Accessible

HOA Dues

—

Garage

Yes

Features

—

Last updated by owner on Jun 24, 2025.

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
Gas & Electric Dryer Hookup

Bathroom Information
# of Baths (Full): 2

Cooling Information
Dual
Has Cooling

Room Information
Kitchen

Fireplace Information
Living Room
Has Fireplace

Heating Information
Central Furnace
Has Heating

Interior Features
Levels: Two
Main Level Bathrooms: 2
Main Level Bedrooms: 2

Exterior

Exterior Features
Pool Features: None

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Corner Lot

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Parcel Number: 8714017014
Total # of Stories: 2
Year Built Source: Assessor

Financial

Assesments Information
Assessments: Unknown

Utilities

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

Location

Neighborhood Information
Community Features: Curbs

School Information
High School District: Walnut Valley Unified

Location Information
Latitude: 33.96185400
Longitude: -117.85230500
Directions: S Brea Canyon Rd & Silver Bullet Dr
Zoning: LCR17500*

Public facts

Beds: 4
Baths: 2.0
Sq. Ft.: 2,100
Stories: —
Parking Spaces: 2
Basement: No
Accessible: No
Lot Size: 10,227 square feet
Style: Single Family Residential
Year Built: 1963
Year Renovated: 1963
County: Los Angeles County
APN: 8714017014
HOA Dues: —
Garage: Yes
Features: —

Home facts updated by owner on Jun 24, 2025

Other

Listing Information
Days Active in MLS: 22
Continuous Days Active in MLS: 306

Listing Agent Information
List Agent First Name: EDWIN
List Agent Last Name: JIN
Co-List Agent First Name: Han-Ni
Co-List Agent Last Name: Chen

Listing Office Information
List Office Name: WINMASTER REALTY, INC.
Co-List Office Name: WinMaster Realty Inc

Selling Agent Information
Buyer Agent First Name: Stefanie
Buyer Agent Last Name: Cao

Selling Office Information
Buyer Office Name: Keller Williams Signature

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.8mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 2.1mi

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

1/10 Flood Factor

Minimal risk 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

$991,000 – $1.20M

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Home values near 3805 Castle Rock Rd

Data from public records.

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

Address	Redfin Estimate
3711 Castle Rock Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1521 Sq. Ft.	$862,289
3731 Castle Rock Rd, Diamond Bar, CA 4 Beds \| 2 Baths \| 1724 Sq. Ft.	$988,333

Address	Redfin Estimate
3719 Castle Rock Rd, Diamond Bar, CA 4 Beds \| - Baths \| 2164 Sq. Ft.	$1,020,864
3737 Castle Rock Rd, Diamond Bar, CA 3 Beds \| 2 Baths \| 1521 Sq. Ft.	$893,138

Property information provided by CRMLS when last listed in 2018. This data may not show owner updates. 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 3805 Castle Rock Rd

Tax history for 3805 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 3805 Castle Rock Rd

More real estate resources