2809 Oak Knoll Drive, Diamond Bar, California, United States. - Hero Image
Property logo
2809
Oak Knoll Drive
Diamond Bar | California

Welcome to

Extraordinary Living

View More
Menu
A + Realty & Mortgage
A + Realty & Mortgage
Presented At
$4,880,000
Bedrooms
7
Bathrooms
8
Living
10,232
SQFT
Open Kitchen
Office
Bar
Laundry Room
Garage
Parking
Fire Pit
Pool
Gated Community
Privacy
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 1
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 2
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 3
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 4
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 5
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 6
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 7
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 8
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 9
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 10
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 11
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 12
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 13
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 14
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 15
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 16
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 17
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 18
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 19
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 20
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 21
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 22
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 23
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 24
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 25
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 26
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 27
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 28
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 29
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 30
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 31
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 32
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 33
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 34
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 35
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 36
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 37
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 38
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 39
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 40
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 41
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 42
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 43
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 44
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 45
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 46
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 47
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 48
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 49
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 50
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 51
2809 Oak Knoll Drive, Diamond Bar, California, United States. - Photo 52
Thumbnail 1
Thumbnail 2
Thumbnail 3
Thumbnail 4
Thumbnail 5
Thumbnail 6
Thumbnail 7
Thumbnail 8
Thumbnail 9
Thumbnail 10
Thumbnail 11
Thumbnail 12
Thumbnail 13
Thumbnail 14
Thumbnail 15
Thumbnail 16
Thumbnail 17
Thumbnail 18
Thumbnail 19
Thumbnail 20
Thumbnail 21
Thumbnail 22
Thumbnail 23
Thumbnail 24
Thumbnail 25
Thumbnail 26
Thumbnail 27
Thumbnail 28
Thumbnail 29
Thumbnail 30
Thumbnail 31
Thumbnail 32
Thumbnail 33
Thumbnail 34
Thumbnail 35
Thumbnail 36
Thumbnail 37
Thumbnail 38
Thumbnail 39
Thumbnail 40
Thumbnail 41
Thumbnail 42
Thumbnail 43
Thumbnail 44
Thumbnail 45
Thumbnail 46
Thumbnail 47
Thumbnail 48
Thumbnail 49
Thumbnail 50
Thumbnail 51
Thumbnail 52
2809 Oak Knoll Drive, Diamond Bar, California, United States. , Diamond Bar , California

Single Family Residence in Diamond Bar

This exceptional estate, with original owner, located in the prestigious gated community of The Country, spans two parcels and boasts six luxurious bedroom suites, offering unparalleled comfort and privacy. An office with a full bath that can be used as the second downstairs bedroom suite, and an elegant, well-appointed powder room conveniently located between the formal living room and spacious family room, making it ideal for entertaining. A dramatic two-story grand entry with a crystal chandelier welcomes you. Wide double staircases leading to different sections of the upper level set an impressive tone upon arrival. The formal living and dining rooms provide generous spaces for gatherings, while the family room is equipped with a custom-built-in entertainment center and is seamlessly connected to the large open kitchen, breakfast nook, a couple of cozy conversation sitting areas, and a gorgeous wet bar with a table for wine tasting. The gourmet kitchen is a chefs dream, complete with dual center islands, custom cabinetry, and an adjoining wok kitchen for added culinary flexibility. Enjoy casual dining in the bright breakfast nook, perfectly situated off the open kitchen layout. Designed for both everyday living and grand entertaining, this home offers a thoughtfully designed floor plan that encourages flow and connection. Crown molding throughout the home. Wide and open upper-floor hallway with wainscot paneling. The upstairs laundry room is conveniently located near all bedrooms, and a bedroom-sized storage room provides ample space for seasonal dcor and miscellaneous items. An expansive bonus area with paneled ceiling and walls is ideal for billiards, gaming tables, or displaying collectibles, offering endless opportunities for leisure and personalization. Custom window coverings throughout the home add a refined finishing touch. Outside, the professionally landscaped grounds are a true oasis, featuring a resort-style pool and spa, gazebo, fire pit, flagstone walkways, tastefully placed plants, flowers, and many mature trees, plus a large grassy area perfect for recreation or relaxation. A four-car garage with built-in cabinetry ensures ample parking and organized storage. This residence combines elegant design, practical functionality, and luxurious amenities perfect for those who love to entertain and live in comfort.

Gallery

3D Street View Tour

Map showing 2809 Oak Knoll Drive, Diamond Bar, California, United States.

Property Location

2809 Oak Knoll Drive, Diamond Bar, California, United States., Diamond Bar California

Local Weather & Climate

Diamond Bar, California

Current Conditions Updated recently
53 °F
Mist
Feels Like 53°F
Humidity 89%
Wind 1 mph
Visibility 5 mi
Sunrise 2:53 PM
Sunset 1:13 AM
5-Day Forecast
Sat 24 Jan
Clouds
High 62°
Low 54°
Sun 25 Jan
Clouds
High 65°
Low 52°
Mon 26 Jan
Clouds
High 69°
Low 54°
Tue 27 Jan
Clouds
High 69°
Low 54°
Wed 28 Jan
Clouds
High 69°
Low 55°
Annual Climate Based on last 12 months
55° Avg Low
Jan
79° Avg High
Aug
48 Rainy Days
per year
Arid
Semi-Arid
Moderate
Wet
21.4" Annual Rainfall
Arid climate
Monthly Temperatures
Jan
68°
49°
Feb
71°
50°
Mar
83°
55°
Apr
75°
53°
May
81°
56°
Jun
85°
59°
Jul
86°
60°
Aug
92°
63°
Sep
87°
64°
Oct
78°
55°
Nov
70°
51°
Dec
68°
49°
Data from OpenWeatherMap & Open-Meteo

Mortgage Calculator

Estimate your monthly payments for this property

$
%
$100,000
%
Estimated Monthly Payment $3,160
Monthly Payment Breakdown
Principal & Interest $2,528
Loan Amount $400,000
Total Interest $337,621
Total Cost $737,621
Potential Tax Benefits (United States)
$0 Est. First Year Interest Deduction
$0 Est. Annual Tax Savings
*Based on post-2017 tax law. Actual deductions depend on filing status, itemization, and current tax laws.

Ready to explore financing?

Connect with trusted mortgage partners

Important Information
  • This calculator is for illustrative purposes only and does not constitute a loan offer, pre-approval, or commitment to lend.
  • Monthly payment estimates do not include property taxes, homeowner's insurance, HOA fees, or other applicable costs which may significantly increase your actual payment.
  • Interest rates shown are for demonstration only. Actual rates depend on your credit score, down payment, loan type, property location, and current market conditions.
  • This tool provides estimates only. Consult with a licensed mortgage professional for accurate quotes and personalized advice.
  • Tax benefit calculations are simplified estimates based on general assumptions for United States. Actual deductions depend on your specific tax situation, filing status, and current tax laws.
  • Tax Year Information: Tax data shown is based on United States tax year 2025 (fiscal year: January-December), rules effective from 2018 through 2025. Tax laws change frequently and may have been amended since this data was compiled.

Frequently Asked Questions

Common questions about this property

This house at 2809 Oak Knoll Drive, Diamond Bar, California, United States features 7 bedrooms with 10,232 square feet of living space.
This property offers 10,232 square feet of living space.
This property is listed at $488,000,000, which equals $47694 per square foot.
Diamond Bar features a pleasant climate. Average temperatures range from 55°F in winter to 79°F in summer. The area receives approximately 21.4 inches of precipitation annually. There are about 48 days with rain throughout the year. This climate information can help you plan for seasonal activities and energy costs.
Diamond Bar tends to be warmest in Aug and coldest in Jan. The shoulder seasons of spring and fall often offer the most comfortable weather for moving and outdoor activities.
This is a house located in Diamond Bar, California. The property is situated in an established neighborhood with convenient access to local amenities and services.
A + Realty & Mortgage

A + Realty & Mortgage

A + Realty & Mortgage

View Full Profile

Schedule a Tour

Get in touch with our listing agents

SunMonTueWedThuFriSat

More Listings

Explore more properties

Official Real Estate Games

Have fun discovering more properties while playing our real estate games — win prizes for ranking high!

$
$
$
$
$
$
$
WIN CREDITS
Up Your Real Estate Skills FOR FREE

Loading listings...