$3,680,000 - 2898 Horizon Lane, Diamond Bar

  • 5Beds
  • 6Baths
  • 7,133SQ. Feet
  • 1.36Acres

Diamond Bar Home Sale

Welcome to this beautifully designed, elegant custom-built estate in the prestigious 24-hour guard-gated community of The Country Estates' community. This spacious two-story mansion features 5 bedroom suites plus a powder room, including one suite on the main level. Highlights include a gourmet kitchen with granite countertops and built-in appliances, soaring ceilings, custom draperies, crystal chandeliers, and a grand library with built-in shelving. Enjoy multiple living spaces, a luxurious primary suite with dual walk-in closets, a spa-like bath with steam shower and Jacuzzi tub, and a beautifully landscaped backyard with a fountain. The property also has a gorgeous movie theater room. Located on a quiet cul-de-sac with a private gated driveway, 3-car garage, and 3-zone central AC for year-round comfort. Phenomenal location affording utmost privacy with stunning surrounding views. Come see and appreciate!

Sales Agent

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

Amenities

  • AmenitiesClubhouse, Outdoor Cooking Area, Other, Playground, Pickleball, Pool, Guard, Security, Trail(s)
  • Parking Spaces3
  • ParkingGarage
  • # of Garages3
  • GaragesGarage
  • Has PoolYes
  • PoolNone, Association
  • SecurityGated Community, 24 Hour Security

School Information

  • DistrictWalnut Valley Unified
  • ElementaryCastle Rock
  • MiddleChaparral
  • HighDiamond Bar

Essential Information

  • MLS® #TR25172563
  • Price$3,680,000
  • Bedrooms5
  • Bathrooms6.00
  • Full Baths6
  • Square Footage7,133
  • Acres1.36
  • Year Built1999
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StyleMediterranean
  • StatusClosed
  • Listing AgentDiana Cheng
  • Listing OfficeCountry Queen Real Estate

Exterior

  • Lot DescriptionLawn, Landscaped, Street Level
  • WindowsCustom Covering(s)

Additional Information

  • Date ListedAugust 1st, 2025
  • Days on Market27
  • ZoningR1
  • Short SaleN
  • RE / Bank OwnedN

Community Information

  • Address2898 Horizon Lane
  • Area616 - Diamond Bar
  • CityDiamond Bar
  • CountyLos Angeles
  • Zip Code91765

Interior

  • Interior FeaturesGranite Counters, High Ceilings, Recessed Lighting
  • AppliancesBuilt-In Range, Gas Oven, Gas Water Heater
  • HeatingCentral
  • CoolingCentral Air, See Remarks
  • FireplaceYes
  • FireplacesGas, See Remarks
  • # of Stories2
  • StoriesTwo

Price Change History for 2898 Horizon Lane, Diamond Bar, (MLS® #TR25172563)

Date Details Price Change
Closed
Pending
Active Under Contract (from Active)

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  • City:
    Diamond Bar
  • Price Range:
    $269,000 - $6,200,000
  • Current Listings:
    377
  • HOA Dues:
    $195
  • Average Price per Square Foot:
    $553

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Based on information from California Regional Multiple Listing Service, Inc. as of January 8th, 2026 at 1:30pm PST. 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.