2868 Oak Knoll
Diamond Bar, CA, 91765
$3,980,000
6 Beds
6 Baths
6,423 SqFt
1.23 Acres
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MLS #TR26151147 image #0
Located within “The Country”, Diamond Bar’s prestigious 24-hour guard-gated community, this magnificent custom-built estate is a true architectural masterpiece, offering exceptional craftsmanship, privacy, and luxury.
Encompassing approximately 6,423 square feet of elegant living space and surrounded by other distinguished custom estates, this impressive residence welcomes you through grand double doors into a dramatic foyer highlighted by a stunning Crystal Chandelier. The formal living and dining rooms provide sophisticated spaces for elegant entertaining and both-sided fireplace, while the expansive family room features a custom wet bar, creating the perfect setting for gatherings with family and friends.
Designed for both everyday living and grand entertaining, the gourmet chef’s kitchen showcases granite countertops, a large center island, custom cabinetry, high-end stainless steel appliances, and a built-in Sub-Zero refrigerator, combining timeless style with exceptional functionality.
The home offers 6 spacious bedrooms and 5.5 bathrooms, including 4 bedroom suites. Two bedroom suites are conveniently located on the main level, making them ideal for guests or multi-generational living. The luxurious primary suite serves as a private retreat, fireplace, private balcony, spacious walk-in closet, spa-inspired bathroom with a soaking tub, and a separate shower.
Step outside to your own resort-style backyard featuring a sparkling swimming pool and spa, two pavilion gazebos, a built-in BBQ and outdoor cooking area, professionally designed landscaping, and a variety of mature fruit trees, creating the perfect environment for outdoor entertaining and relaxation.
Additional highlights include new three-zone central air conditioning, a 3-car garage, RV parking, a security system, elegant crown molding throughout, and fresh interior and exterior paint.
Ideally situated on a private cul-de-sac within the highly acclaimed Walnut Valley Unified School District, this extraordinary estate offers the perfect balance of prestige and convenience, just minutes from fine dining, premier shopping, and major freeways.
A rare opportunity to own one of the most distinguished luxury estates in “The Country”, one of Diamond Bar’s most exclusive communities.

Property Details

Price:
$3,980,000
MLS #:
TR26151147
Status:
Active
Beds:
6
Baths:
6
Type:
Single Family
Subtype:
Single Family Residence
Neighborhood:
616diamondbar
Listed Date:
Jul 16, 2026
Finished Sq Ft:
6,423
Lot Size:
53,448 sqft / 1.23 acres (approx)
Year Built:
1998
PoolCommunity Gated616 – Diamond Bar616diamondbarWalnut Valley UnifiedCastle RockSouth PointeDiamond BarPool

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Schools

School District:
Walnut Valley Unified
Elementary School:
Castle Rock
Middle School:
South Pointe
High School:
Diamond Bar

Interior

Appliances
MW, RF, GO, GR, BIR, HOD
Bathrooms
1 Full Bathroom, 4 Three Quarter Bathrooms, 1 Half Bathroom
Cooling
CA
Flooring
STON, WOOD, CARP
Heating
CF
Interior Features
WB, CRWN, RECL, GRNC, BL, HCEL
Laundry Features
GAS, IR
Levels
U
Main Level Bathrooms
3
Main Level Bedrooms
2

Exterior

Attached Garage YN
1
Common Walls
NCW
Community Features
HRS, PARK, BIKI
Exterior Features
RG
Fencing
WI
Garage Spaces
3
Parking Spots
3
Parking Total
3
Patio And Porch Features
OPN
Roof
TLE
Security Features
SS, SD, _24HR, GG, GA
Spa Features
AS, IG, PVT, COM
View
HI, PL
Window Features
DPW

Financial

HOA Fee
$308
HOA Fee Frequency
MO

Map

Community

Market Summary

Current real estate data for Single Family in Diamond Bar as of Jul 18, 2026
123
Single Family Listed
72
Avg DOM
435
Avg $ / SqFt
$1,500,764
Avg List Price

Property Summary

    2868 Oak Knoll Diamond Bar CA is a Single Family for sale in Diamond Bar, CA, 91765. It is listed for $3,980,000 and features 6 beds, 6 baths, and has approximately 6,423 square feet of living space, and was originally constructed in 1998. The current price per square foot is $620. The average price per square foot for Single Family listings in Diamond Bar is $435. The average listing price for Single Family in Diamond Bar is $1,500,764.

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