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Single family home for sale at 2855 Oak Knoll Dr, Diamond Bar, CA 91765 | MLS# TR26164654 | Listing updated on 2026-09-13
Photo 1 of Single family home for sale at 2855 Oak Knoll Dr, Diamond Bar, CA 91765 | MLS# TR26164654 | Listing updated on 2026-09-13
Photo 2 of Single family home for sale at 2855 Oak Knoll Dr, Diamond Bar, CA 91765 | MLS# TR26164654 | Listing updated on 2026-09-13
Photo 3 of Single family home for sale at 2855 Oak Knoll Dr, Diamond Bar, CA 91765 | MLS# TR26164654 | Listing updated on 2026-09-13
Photo 4 of Single family home for sale at 2855 Oak Knoll Dr, Diamond Bar, CA 91765 | MLS# TR26164654 | Listing updated on 2026-09-13
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Listed by: Diana Cheng (909) 208-4040 DRE #00856071, Juliet Chung DRE #01887530 | Country Queen Real Estate (909) 208-4040

$6,980,000

Monthly Est:$34,742

  • Beds Icon6 Beds
  • Beds Icon
    7 Baths
  • Beds Icon11,000sqft

2855 Oak Knoll Dr, Diamond Bar, CA 91765

$34,742/moEst:

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  • Single Family Residence

  • Built in 2006

  • $350/mo HOA

  • 1.42 acres lot

  • $635/sq.ft

Description

Nestled in the serene embrace of the mountains within “The Country Estates”, this magnificent custom-built mansion & hidden gem within Diamond Bar's prestigious community, this home truly exudes timeless elegance and unparalleled tranquility in all senses. Beyond the 24 hour security guard-gated entrance, the community features welcome you, hinting at the beauty that awaits within. This luxury compound was beautifully crafted with meticulous attention to Feng Shui principles; All aspects of this home are thoughtfully designed to harmonize with its surroundings. Step inside to discover a world of refined living, where a formal living room with a cozy fireplace beckons relaxation & an intimate dining rm offers panoramic views of the lush & beautifully manicured gardens. In the heart of the home, a gourmet kitchen adorned with granite countertops & top-of-the-line appliances, invites culinary delights. On one wing, a spacious family rm & den with a wet bar provide ample space for leisure & entertainment, while a complete billiards room promises endless enjoyment.A true sanctuary awaits on the other side, where an authentic Japanese-style tea/master bedroom boasts a gracious bathroom and walk-in closet, offering a retreat from the everyday hustle and bustle. Iron security screen doors throughout, two impressive master bedrooms w/balconies & fireplaces offer sweeping vistas, while 3 junior suites ensure comfort & privacy for guests. For those seeking solitude, a full wood-paneled library offers a peaceful haven, overlooking the majestic mountainscapes. Renovated with noble materials throughout, this home epitomizes luxury, with over $2M invested in landscape upgrades, the addition of a 1,000SF clubhouse, amazing infinity pool & spa, & Jacuzzi. Indulge in the ultimate relaxation within, featuring a smart home system, gym, & natural wood sauna rm with a steam shower. As the sun sets, unwind in the exquisite backyard oasis, surrounded by mature palm trees & lush fruit trees. Entertain in style with a BBQ area, putting green, swing, elevated fire pit, and manicured Zen Garden, all illuminated by intricate lighting and sound systems. From intimate gatherings to grand celebrations, this home offers an unparalleled setting - experience the epitome of harmony, luxury-living, & peace, where every detail wad thoughtfully curated to elevate your lifestyle both indoors & outdoors. Welcome to your dream retreat-an oasis of luxury and serenity awaiting your arrival!

  • Houzeo last checked: 12 hours ago
  • Listing updated: September 13, 2026 at 5:22 pm
  • Source: California Regional MLS-CA | MLS#: TR26164654 California Regional MLS-CA

Property Details

  • Status

    Active

  • Type

    Single Family Residence

  • No. of Stories

    2

  • County

    Los Angeles County

  • City

    Diamond Bar

  • Neighborhood

    --

  • Year Built

    2006

  • HOA Fees

    $350/mo

  • Finished Area

    11,000 sqft

  • Lot Size

    1.42 acres lot

  • Basement Area

    - sqft

  • MLS Name

    California Regional MLS

  • MLS Number

    TR26164654

  • MLS Status

    Active

  • Days on Market

    62

  • Cumulative Days on Market

    195

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Location

HOA Management

Country Estates Assoc

HOA Fees

$350/ Monthly

Amenities

Amenities and services may be covered by one or multiple associations and service providers.

Gym Gym

Insurance Insurance

Club House Club House

Tennis Tennis

Spa Spa

Security Gate Security Gate

Bike Trails Bike Trails

Park Playground Park Playground

Security Guard Security Guard

Pool Pool

Maintenance Maintenance

Sports Court Sports Court

Meeting Room Meeting Room

Management Management

Other Other

PetRestrictions PetRestrictions

Barbecue Barbecue

Disclaimer: Amenities are based on third-party information and may vary; buyers must independently verify all amenities, as information is deemed reliable but not guaranteed.

Facts & Features

Rooms

  • Bedrooms & bathrooms

    Bedrooms: 6

    Bathrooms: 7

Interior

  • Interior Features

    Wet Bar, Breakfast Bar, Balcony, Breakfast Area, Crown Molding, Dry Bar, Separate Formal Dining Room, Eat In Kitchen, Furnished, Granite Counters, High Ceilings, Pantry, Quartz Counters, Recessed Lighting, Bar, Wired For Sound, Bedroom On Main Level, Entrance Foyer, Multiple Primary Suites, Primary Suite, Utility Room

  • Sewer

    Public Sewer

  • Exterior Features

    Barbecue, Lighting, Fire Pit

  • Cooling

    Central Air

  • Flooring

    Laminate, See Remarks, Stone, Wood

  • Appliances

    Six Burner Stove, Built In Range, Barbecue, Double Oven, Dishwasher, Freezer, Gas Cooktop, Gas Oven, Microwave, Refrigerator, Range Hood, Water Softener, Vented Exhaust Fan, Water To Refrigerator, Warming Drawer

  • Window Features

    Blinds, Custom Coverings, Drapes

  • Heating

    Central, Fireplaces, See Remarks, Zoned

Construction

  • Year Built

    Year Built: 2006

  • Home type

    Single Family Residence

  • Architectural Style

    Custom, See Remarks

  • Foundation Details

    Combination, Slab

  • Property Condition

    Additions Alterations, Updated Remodeled, Turnkey

  • Roof

    Tile

  • Construction Materials

    Other, Concrete, Stone, Stucco

Utilities & Energy

  • Pool Features

    Heated, In Ground, Pebble, Private, See Remarks, Waterfall, Association

  • Association Amenities

    Clubhouse, Controlled Access, Sport Court, Fitness Center, Maintenance Grounds, Insurance, Meeting Room, Management, Other Courts, Barbecue, Other, Playground, Pickleball, Pool, Pet Restrictions, Guard, Spa Hot Tub, Security, Tennis Courts, Trails

  • Laundry Features

    Washer Hookup, Gas Dryer Hookup, Inside, Laundry Room, See Remarks

  • Utilities

    Electricity Connected, Natural Gas Connected, Sewer Connected, See Remarks, Water Connected

  • Parking Features

    Concrete, Garage, Garage Door Opener, See Remarks

  • Security Features

    Prewired, Security System, Carbon Monoxide Detectors, Gated With Guard, Gated Community, Twenty Four Hour Security, Smoke Detectors, Security Lights

  • Fireplace Features

    Gas, Living Room, Primary Bedroom

  • Water Source

    Public

Other Features

  • Lot Features

    Front Yard, Garden, Sprinklers In Rear, Sprinklers In Front, Lawn, Lot Over40000sqft, Landscaped, Level, Sprinklers Timer, Sprinklers On Side, Sprinkler System, Street Level

  • Community Features

    Hiking, Horse Trails, Park, Suburban, Sidewalks, Gated

  • Disclosures

    Covenants Restrictions Disclosure, Hoa Disclosure

  • Patio And Porch Features

    Covered, Deck, Open, Patio, Porch, See Remarks, Terrace

Price History

DateEventPrice

08/10/2026

Source: mls_logoCalifornia Regional MLS-CA #TR26164654

Price Decreased

$6,980,000 -9.21%

$635/sqft

01/07/2026

Source: mls_logoCalifornia Regional MLS-CA #26633281

Off Market

$7,688,000

$699/sqft

01/07/2026

Source: mls_logoCalifornia Regional MLS-CA #26633281

Listed for Sale

$7,688,000 -9.53%

$699/sqft

08/02/2025

Source: mls_logoCalifornia Regional MLS-CA #25564387

Listed for Sale

$8,498,000 +7.84%

$773/sqft

04/01/2024

Source: mls_logoCalifornia Regional MLS-CA #TR24063656

Off Market

$7,880,000 +132.59%

$716/sqft

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Based on information from California Regional Multiple Listing Service, Inc. as of Oct 12, 2026, 10:30AM 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. Information being provided is for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. This website may not include listings or property addresses of sellers who have directed their listing brokers to withhold their listing or their property address from display on the Internet. © 2026 California Regional Multiple Listing Service. All Rights Reserved.

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