3839 Castle Rock Rd, Diamond Bar, CA 91765

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Off market jan 2021 for $845K

$1,159,832

Est. refi paymentEst. refi $5,614/mo

•

1,812

sq ft

3839 Castle Rock Rd, Diamond Bar, CA 91765

About this home

Back on market thru no fault of the sellers. Exquisite Single Story customized home on a valuable oversized flat lot, large enough for an ADU or RV Parking, plus! Safe END OF CUL-DE-SAC location in one of the top school districts in CA. Aesthetically appealing with open entertainer's floorplan w/ highly upgraded kitchen island, dining room, great room (family room) & bonus room, all open to each other w/ added skylights for that light, bright & airy feeling. Almost every part of the house was recently renovated with quality materials & craftsmanship. Kitchen has custom cabinetry, quartz counters & island. Master Suite fits king sized bed w/ walk-in closet & en-suite renovated bathroom. Both secondary bedrooms have been upgraded w/ walk in closets for convenience. All newer recessed lighting, fandeliers, solar panels, outdoor landscaping w/ donut peach & mandarin orange trees. Newer waterproof luxury vinyl wide plank wood style flooring thru-out the house. Brand new "Man-Cave" or "She-Shed" that is currently set up as an outside private office with A/C heater combo. See aerial photos to get a view of the compound feel with room enough for a secure playground or whatever you want next to the Covered BBQ patio (BBQ included)! Convenient to freeways, shopping, churches & wonderful schools. Oversized garage with workshop area, newer garage door & shelving with convenient side door to yard. Sq footage includes"Man Cave/She Shed" which has heat/AC & was professionally built/installed.

Single-familyProperty Type

1963Year Built

8,290 sq ftLot Size

$640Est. Price/Sq.Ft.

2 garage spacesParking

Listed by Kirby Ellis •DRE #00938001 • Coldwell Banker Realty

Listed by Gina Strane •DRE #01296474 • Coldwell Banker Realty

Bought with Lorena Arguelles •DRE #01991266 • IMPACT Properties, Inc

Redfin checked: a minute ago

•Source:CRMLS #OC20175056

Redfin Estimate

$1,159,832

$315K since sold in January 2021$0 since September

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 22.3% higher than the average sale price ($948K) 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
$875,000
B
3 beds2 baths1,300 sq ft
21245 Cold Spg, Diamond Bar, CA 91765
SOLD JUL 31, 2026
$975,000
C
3 beds2 baths1,300 sq ft
2606 Castle Rock Rd, Diamond Bar, CA 91765
Synergy Real Estate
SOLD AUG 19, 2026
$920,000
D
3 beds2 baths1,792 sq ft
19348 Dakin St, Rowland Heights, CA 91748
Real Broker
SOLD JUL 16, 2026
$958,600
E
3 beds2 baths1,372 sq ft
2127 Evergreen Springs Dr, Diamond Bar, CA 91765
Keller Williams Premier Prop
SOLD FEB 27, 2026
$1,030,000
F
4 beds2 baths1,756 sq ft
2710 Castle Rock Rd, Diamond Bar, CA 91765

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Earn from this home

Sell

$495,916

Est. take-home

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Refinance

Est. cash available

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Rent

$3,273/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

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COMING SOON
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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
See all

Provided by Redfin

Redfin agents who toured

Open kitchen, dining and family room layout. Garage has access into the dining and kitchen areas. Laundry is in the garage. Backyard is located more on the side if the house and has gates that are accessible from the side and the back of the...
6 years ago• May not reflect the current state of the home
Tawny Murray
Redfin agent

Sale history for 3839 Castle Rock Rd

Date

Event

Price

CRMLS #OC20175056

Jan 7, 2021

Sold

$845,000

$466/sq ft

Nov 29, 2020

Pending

—

Nov 19, 2020

Price Changed

$850,000

$469/sq ft

Oct 17, 2020

Relisted

—

Sep 30, 2020

Pending

—

Sep 19, 2020

Price Changed

$869,000

$480/sq ft

Aug 26, 2020

Listed

$895,000

$494/sq ft

CRMLS #CV18185684

Oct 12, 2018

Sold

$625,000

$345/sq ft

Sep 4, 2018

Pending

—

Aug 24, 2018

Price Changed

$640,000

$353/sq ft

Apr 3, 2018

Listed

$658,000

$363/sq ft

Apr 3, 2018

Listed

$640,000

$353/sq ft

CRMLS #CV18074548

Jul 31, 2018

Listing Removed

—

Jul 13, 2018

Price Changed

$658,000

$363/sq ft

May 10, 2018

Price Changed

$675,000

$373/sq ft

Apr 3, 2018

Listed

$698,000

$385/sq ft

CRMLS #I07136119

Apr 2, 2008

Sold

$425,000

$235/sq ft

Feb 8, 2008

Listing Removed

—

Jan 2, 2008

Price Changed

$430,000

$237/sq ft

Dec 14, 2007

Price Changed

$455,000

$251/sq ft

Nov 30, 2007

Price Changed

$480,000

$265/sq ft

Oct 25, 2007

Price Changed

$505,000

$279/sq ft

Oct 4, 2007

Price Changed

$515,000

$284/sq ft

Sep 17, 2007

Listed

$535,000

$295/sq ft

CRMLS #A07114300

Aug 16, 2007

Listing Removed

—

Aug 15, 2007

Price Changed

$499,000

$275/sq ft

Aug 4, 2007

Listed

$539,000

$297/sq ft

CRMLS #H507596

Nov 3, 2005

Sold

$640,000

$353/sq ft

Jul 6, 2005

Listed

$640,000

$353/sq ft

CRMLS #H511577

Sep 29, 2005

Listing Removed

—

Sep 23, 2005

Listed

$555,000

$306/sq ft

CRMLS #H509684

Sep 29, 2005

Listing Removed

—

Aug 16, 2005

Listed

$575,000

$317/sq ft

Public Records

Jan 23, 1976

Sold

$40,000

$22/sq ft

Year

Property tax

Land + Additions

Assessment*

2025

$11,673 (+4.4%)

$656,169 + $258,483

$914,652

2024

$11,186 (+3.4%)

$656,169 + $258,483

$914,652

2023

$10,820 (+2.1%)

$643,303 + $253,415

$896,718

2022

$10,598 (+30.9%)

$630,690 + $248,447

$879,137

2021

$8,096 (+1.3%)

$618,324 + $243,576

$861,900

2020

$7,995 (−5.6%)

$515,283 + $128,820

$644,103

2019

$8,468 (+41.0%)

$510,000 + $127,500

$637,500

2018

$6,006 (+4.8%)

$500,000 + $125,000

$625,000

2017

$5,733 (+3.0%)

$384,800 + $96,196

$480,996

2016

$5,563 (−0.6%)

$384,800 + $96,196

$480,996

2015

$5,595 (−0.1%)

$377,255 + $94,310

$471,565

2014

$5,601 (+1.2%)

$364,311 + $91,075

$455,386

2012

$5,537 (+3.0%)

$362,665 + $90,664

$453,329

2011

$5,378 (+0.8%)

$355,554 + $88,887

$444,441

2010

$5,336 (+12.7%)

$348,583 + $87,145

$435,728

2009

$4,734 (−30.3%)

$345,978 + $86,494

$432,472

2008

$6,794

$306,000 + $76,500

$382,500

Tax history for 3839 Castle Rock Rd

Year

Property tax

Land + Additions

Assessment*

2025

$11,673 (+4.4%)

$656,169 + $258,483

$914,652

2024

$11,186 (+3.4%)

$656,169 + $258,483

$914,652

2023

$10,820 (+2.1%)

$643,303 + $253,415

$896,718

2022

$10,598 (+30.9%)

$630,690 + $248,447

$879,137

2021

$8,096 (+1.3%)

$618,324 + $243,576

$861,900

2020

$7,995 (−5.6%)

$515,283 + $128,820

$644,103

2019

$8,468 (+41.0%)

$510,000 + $127,500

$637,500

2018

$6,006 (+4.8%)

$500,000 + $125,000

$625,000

2017

$5,733 (+3.0%)

$384,800 + $96,196

$480,996

2016

$5,563 (−0.6%)

$384,800 + $96,196

$480,996

2015

$5,595 (−0.1%)

$377,255 + $94,310

$471,565

2014

$5,601 (+1.2%)

$364,311 + $91,075

$455,386

2012

$5,537 (+3.0%)

$362,665 + $90,664

$453,329

2011

$5,378 (+0.8%)

$355,554 + $88,887

$444,441

2010

$5,336 (+12.7%)

$348,583 + $87,145

$435,728

2009

$4,734 (−30.3%)

$345,978 + $86,494

$432,472

2008

$6,794

$306,000 + $76,500

$382,500

*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

8,292 Sq. Ft.

Year renovated

1964

Sq. Ft.

1,700

Year built

1963

Style

Single Family Residential

County

Los Angeles County

APN

8714017018

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
Uncovered Spaces: 4
Attached Garage
# of Garage Spaces: 2
Direct Garage Access, Driveway, Paved, Garage, Garage - Front Entry, Garage - Single Door
Has Parking
# of Parking Spaces: 6

Interior

Laundry Information
Has Laundry
Gas Dryer Hookup, In Garage

Kitchen Information
Appliances: Dishwasher, Free Standing Range, Gas Range, Microwave, Tankless Water Heater
Has Appliances
Breakfast Counter / Bar, Family Kitchen, Formal Dining Room
Kitchen Island, Kitchen Open to Family Room, Quartz Counters, Remodeled Kitchen

Bathroom Information
# of Baths (Full): 2
Bathtub, Shower, Quartz Counters, Remodeled, Upgraded, Walk-in shower

Cooling Information
Central, Wall Window
Has Cooling

Room Information
Bonus Room, Family Room, Formal Entry, Great Room, Kitchen, Laundry, Main Floor Bedroom, Main Floor Primary Bedroom, Primary Bathroom, Primary Bedroom, Office, See Remarks, Walk-In Closet

Fireplace Information
Family Room
Has Fireplace

Flooring Information
Vinyl

Heating Information
Central Furnace
Has Heating

Interior Features
Ceiling Fan, Open Floor Plan, Recessed Lighting, Unfurnished
Levels: One
Main Level Bathrooms: 2
Main Level Bedrooms: 3
Security Features: Carbon Monoxide Detector(s), Smoke Detector
Window Features: Bay Window, Blinds, Plantation Shutters, Skylights

Exterior

Exterior Information
Structure Type: House
Other Structures: Shed

Exterior Features
Patio And Porch Features: Covered, Deck, Patio, Patio Open
Has Patio
Pool Features: None

Lot Information
Elevation Units: Feet
Lot Size Source: Assessor's Data
Lot Features: Back Yard, Corner Lot, Cul-De-Sac, Lawn, Lot 6500-9999, Lot Shape-Irregular, Lot-Level/Flat, Secluded, Yard

Property Information
Total # of Units: 1
Common Walls: No Common Walls
Parcel Number: 8714017018
Property Condition: Additions/Alterations, Termite Clearance, Turnkey, Updated/Remodeled
Year Built Source: Assessor

Utilities

Utilities Information
Electric: 220V In Garage
Sewer: Public Sewer
Cable Connected, Electricity Connected, Telephone - In Street, Sewer Connected, Water Connected
Water Source: District/Public

Location

Neighborhood Information
Community Features: Curbs, Sidewalks

School Information
Elementary School: Castle Rock
Middle Or Junior School: Southpoint
High School: Diamond Bar
High School District: Walnut Valley Unified
Elementary School 2: CASROC
Middle Or Junior School 2: SOUTHP
High School 2: DIABAR

Location Information
Latitude: 33.96125000
Longitude: -117.85300300
Directions: Brea Blvd. Turn onto Silver Bullet. Turn right on Castle Rock.
Road Frontage Type: Access via City Streets
Road Surface Type: Paved
Zoning: LCR17500*

Public facts

Beds: 3
Baths: 2.0
Sq. Ft.: 1,700
Stories: —
Lot Size: 8,292 square feet
Style: Single Family Residential
Year Built: 1963
Year Renovated: 1964
County: Los Angeles County
APN: 8714017018

Home facts updated by county records on Aug 30, 2026

Other

Miscellaneous Information
Exclusions: refrigerator, washer and dryer

Listing Information
Days Active in MLS: 77
Continuous Days Active in MLS: 77

Listing Agent Information
List Agent First Name: Kirby
List Agent Last Name: Ellis
Co-List Agent First Name: Gina
Co-List Agent Last Name: Strane

Listing Office Information
List Office Name: Coldwell Banker Realty
Co-List Office Name: Coldwell Banker Realty

Selling Agent Information
Buyer Agent First Name: Lorena
Buyer Agent Last Name: Arguelles

Selling Office Information
Buyer Office Name: IMPACT Properties, Inc

Around this home

Schools

Castle Rock Elementary School

Public K-5 • Assigned • 0.9mi

10/10

South Pointe Middle School

Public 6-8 • Assigned • 2.1mi

10/10

Diamond Bar High School

Public 9-12 • Assigned • 1.6mi

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

6/10 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

$1.10M – $1.33M

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Home values near 3839 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 2020. 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

Redfin agents who toured

Sale history for 3839 Castle Rock Rd

Tax history for 3839 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 3839 Castle Rock Rd

More real estate resources