1822 Diamond Knoll Ln , Diamond Bar, CA 91765
$3,990,000
Est. Payment: $21,133.66/mo
6 Bed
7 Bath
6726 Sqft
Status: Active | Days on site: 574
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House Description

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.

Highlights

Listed by Diana Cheng , 909-208-4040 and Juliet Chung , 909-495-8589 Country Queen Real Estate , 909-208-4040. CRMLS/Multi-Regional MLS mls logo

Property Type

Residential

Lot/Acreage
0.94

HOA Fee

350 Monthly

Year Built

1994

County

Los Angeles

Area

616 - Diamond Bar

School District

Walnut Valley Unified

Listing ID

TR25029175

Questions about this listing?

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Interior Features

Bedrooms and Bathrooms
  • Bedrooms:6
  • Bathrooms:7
  • Full Bathrooms:7
Appliances:6 Burner Stove, Built-In Range, Double Oven, Dishwasher, Freezer, Gas Cooktop, Disposal, Gas Oven, Gas Range, Gas Water Heater, Microwave, Refrigerator, Range Hood, Vented Exhaust Fan, Water Heater, Warming Drawer
Air Cond:Central Air,See Remarks
Fireplaces:Family Room,Gas,Living Room,See Remarks
Floor:See Remarks,Wood
Other:
  • Additional:Wet Bar, Breakfast Bar, Built-in Features, Breakfast Area, Crown Molding, Central Vacuum, Separate/Formal Dining Room, High Ceilings, Recessed Lighting, See Remarks, Bar, Bedroom on Main Level, Entrance Foyer, Walk-In Closet(s)
Water:Public,See Remarks

Exterior Features

Lot:Back Yard,Corners Marked,Front Yard,Garden,Lot Over 40000 Sqft,Landscaped,Sprinklers Timer,Street Level,No Land Lease
Garage Capacity:4
Zoning:LCR1
Roof:Tile
Others:
  • Additional:Updated/Remodeled, Turnkey, Stucco
Sewer:Public Sewer
Parking Features:Direct Access,Driveway,Garage,Garage Door Opener,See Remarks
Principal Interest
$21,134
Taxes
$2,544
HOA
$350

Home Price

$3,990,000

Loan Details

30 yrs
6.952%

Down Payment

20%
$798,000
All calculations are estimates and provided by Blueroof360. Today’s Rates provided by Blueroof360. Information and interactive calculators are made available to you only as self-help tools for your independent use and are not intended to provide investment or tax advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from qualified professionals regarding all personal finance issues.
Monthly Price:
$21,133.66

Principal

Taxes

HOA

Principal Taxes HOA Total
Monthly $21,133.66 $2,543.63 $350.00 $24,027.28
Yearly $253,603.87 $30,523.50 $4,200.00 $288,327.37
Total $7,608,116.21 $915,705.00 $126,000.00 $8,649,821.21

Today's Rates

30 Year

6.95%

20 Year

6.73%

15 Year

6.35%

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Market insight data is pulled from the same city as the listing being viewed (Diamond Bar, CA).

The schools listed are within a 2-mile radius of the property; however, attendance is not guaranteed. Please contact the local school district to confirm zoning and enrollment options.

Based on information from California Regional Multiple Listing Service, Inc. 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. All properties are subject to prior sale, change or withdrawal.

IDX service by Blueroof 360

Data last updated: 2026-09-23T19:04:26.000Z

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