2868 Oak Knoll Dr, Diamond Bar, CA 91765

Single-Family · For sale · $3,980,000 · MLS# TR26151147

Single-Family for sale in Southern California — $3,980,000. 6 beds · 6 baths · 6,423 sqft. 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.…

2868 Oak Knoll Dr
For sale

$3,980,000

2868 Oak Knoll Dr, Diamond Bar, CA 91765

6beds
6baths
6,423sqft
Single-FamilyProperty type
1998Year built
1.23 acresLot size
6,423 sqftLiving area
$620/sqftPrice / sqft
$308/moHOA
3 spacesGarage

Facts & features

Interior

Bedrooms & bathrooms

  • Bedrooms: 6
  • Bathrooms: 6
  • Full bathrooms: 1
  • Half bathrooms: 1

Heating

  • Heating: Central

Cooling

  • Cooling: Central Air

Appliances

  • Included: Built In Range, Gas Oven, Gas Range, Microwave, Refrigerator, Range Hood
  • Laundry: Gas Dryer Hookup, Laundry Room

Interior area

  • Living area: 6,423 sqft

Property

Parking

  • Total parking spaces: 3
  • Garage spaces: 3

Lot

  • Lot size: 1.23 acres

Features

  • Pool features: Community, In Ground, Private, Association
  • View: Hills, Pool

Construction

Type & style

  • Home type: Single-Family
  • Property subtype: Single Family Residence

Condition

  • Year built: 1998

Community & HOA

Community

  • Has HOA: Yes
  • HOA fee: $308/mo

Financial & listing details

  • Days on market: 3 days
  • Price / sqft: $620
  • Status: Active
  • MLS#: TR26151147

Location

  • City: Diamond Bar
  • ZIP: 91765

About this home

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.

Listing updated: July 16, 2026 at 11:01 PM

Listed by: Nancy Liu, ReMax Elite Realty

Source: CRMLS, MLS#: TR26151147, Originating MLS: California Regional MLS

Location

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Diamond Bar

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Facts & features

Interior

Bedrooms & bathrooms

  • Bedrooms: 6
  • Bathrooms: 6
  • Full bathrooms: 1
  • Half bathrooms: 1

Heating

  • Heating: Central

Cooling

  • Cooling: Central Air

Appliances

  • Included: Built In Range, Gas Oven, Gas Range, Microwave, Refrigerator, Range Hood
  • Laundry: Gas Dryer Hookup, Laundry Room

Interior area

  • Living area: 6,423 sqft

Property

Parking

  • Total parking spaces: 3
  • Garage spaces: 3

Lot

  • Lot size: 1.23 acres

Features

  • Pool features: Community, In Ground, Private, Association
  • View: Hills, Pool

Construction

Type & style

  • Home type: Single-Family
  • Property subtype: Single Family Residence

Condition

  • Year built: 1998

Community & HOA

Community

  • Has HOA: Yes
  • HOA fee: $308/mo

Financial & listing details

  • Days on market: 3 days
  • Price / sqft: $620
  • Status: Active
  • MLS#: TR26151147

Location

  • City: Diamond Bar
  • ZIP: 91765

Price history

DateEventPrice
7/15/2026Source: CRMLS, #TR26151147Listed for sale$3,980,000$620/sqft
California Regional Multiple Listing Service (CRMLS)

The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional.

Based on information from California Regional Multiple Listing Service, Inc. as of 2026-07-16 23:01:44 PDT and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information