$3,990,000 - 1822 Diamond Knoll Lane, Diamond Bar

  • 6Beds
  • 7Baths
  • 6,726SQ. Feet
  • 0.94Acres

Diamond Bar Home For Sale

Nestled in the prestigious enclave of The Country Estates, this stunning custom estate embodies refined luxury and timeless elegance. Sprawling over 6,726 square feet of meticulously designed living space, this two-story masterpiece offers six spacious bedrooms and seven exquisite bathrooms, ensuring ample room for both lavish entertaining and intimate family living. Upon entering the grand formal entryway, visitors are greeted by soaring ceilings, striking marble and hardwood floors, and an ambiance of stunning sophistication. The home's layout is thoughtfully arranged with an oversized living room, a gracious formal living area, and a welcoming family room that radiates warmth and charm. Every detail has been carefully curated and updated, from the entirely re-piped systems to the modernized, luxurious bathrooms. The gourmet kitchen is a chef's dream, equipped with top-of-the-line built-in appliances, a generous walk-in pantry, and elegant finishes that promise both functionality and style. Each spacious bedroom suite, including a lush primary retreat, provides a serene sanctuary with refined touches that enhance the sense of calm and comfort. The primary bedroom is spacious, completed with a fireplace, huge walk-in closet, covered viewing deck, marbled bathroom with large vanity, dual sinks, walk-in shower, separate soaking tub, private commode, and magnificent views. Beyond the interior, the property truly shines. Step outside into a breathtaking landscape designed for entertaining and relaxation. The expansive grounds feature a private putting green, a sparkling pool and spa, and a charming gazebo, all set against a backdrop of mesmerizing panoramic city lights and majestic mountain views. The park-like setting offers a peaceful escape, making it the perfect venue for both lively gatherings and quiet evenings under the stars. This beautiful and functional custom estate is more than a simple home, it is a statement of luxury, comfort, and impeccable taste in one of the most coveted communities.

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Sales Agent

Sam Smith
  • Sam Smith
  • San Clemente Realtor ®
  • Phone: 949-204-5110
  • Cell: 949-204-5110
  • Contact Agent Now

Amenities

  • AmenitiesClubhouse, Controlled Access, Guard, Horse Trails, Management, Meeting Room, Other, Outdoor Cooking Area, Pickleball, Picnic Area, Playground, Pool, Security, Sport Court, Trail(s)
  • UtilitiesElectricity Connected, Sewer Connected, Water Connected
  • Parking Spaces4
  • ParkingDirect Access, Driveway, Garage, Garage Door Opener, See Remarks
  • # of Garages4
  • GaragesDirect Access, Driveway, Garage, Garage Door Opener, See Remarks
  • ViewCity Lights, Hills, Mountain(s), Neighborhood, Panoramic
  • Has PoolYes
  • PoolAssociation, In Ground, Private
  • SecurityCarbon Monoxide Detector(s), Gated Community, Gated with Attendant, Gated with Guard, Smoke Detector(s), 24 Hour Security

School Information

  • DistrictWalnut Valley Unified
  • ElementaryQuail Summit
  • MiddleChaparral
  • HighDiamond Bar

Essential Information

  • MLS® #TR25029175
  • Price$3,990,000
  • Bedrooms6
  • Bathrooms7.00
  • Full Baths7
  • Square Footage6,726
  • Acres0.94
  • Year Built1994
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StyleCustom
  • StatusActive
  • Listing AgentDiana Cheng
  • Listing OfficeCountry Queen Real Estate

Exterior

  • ExteriorStucco
  • Lot DescriptionBack Yard, Corners Marked, Front Yard, Garden, Landscaped, Lot Over 40000 Sqft, Sprinklers Timer, Street Level
  • WindowsBlinds, Double Pane Windows, Drapes
  • RoofTile
  • ConstructionStucco
  • FoundationSlab

Additional Information

  • Date ListedFebruary 8th, 2025
  • Days on Market434
  • ZoningLCR1
  • Short SaleN
  • RE / Bank OwnedN

Community Information

  • Address1822 Diamond Knoll Lane
  • Area616 - Diamond Bar
  • CityDiamond Bar
  • CountyLos Angeles
  • Zip Code91765

Interior

  • InteriorSee Remarks, Wood
  • Interior FeaturesBar, Bedroom on Main Level, Breakfast Area, Breakfast Bar, Built-in Features, Central Vacuum, Crown Molding, Entrance Foyer, High Ceilings, Recessed Lighting, See Remarks, Separate/Formal Dining Room, Walk-In Closet(s), Wet Bar
  • AppliancesBuilt-In Range, Dishwasher, Disposal, Double Oven, Freezer, Gas Cooktop, Gas Oven, Gas Range, Gas Water Heater, Microwave, Range Hood, Refrigerator, SixBurnerStove, Vented Exhaust Fan, Warming Drawer, Water Heater
  • HeatingCentral, Fireplace(s)
  • CoolingCentral Air, See Remarks
  • FireplaceYes
  • FireplacesFamily Room, Gas, Living Room, See Remarks
  • # of Stories2
  • StoriesTwo

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616 - Diamond Bar

  • City:
    Diamond Bar
  • Price Range:
    $299,500 - $7,990,000
  • Current Listings:
    139
  • HOA Dues:
    $245
  • Average Price per Square Foot:
    $568

  • City:
    Diamond Bar
  • Price Range:
    $299,500 - $7,990,000
  • Current Listings:
    140
  • HOA Dues:
    $241
  • Average Price per Square Foot:
    $568

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Based on information from California Regional Multiple Listing Service, Inc. as of April 18th, 2026 at 9:59pm PDT. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.