1822 Diamond Knoll Lane
Diamond Bar, CA 91765
Listing broker / agent: Country Queen Real Estate · Diana Cheng · 909-208-4040 · CRMLS
MLS # TR25029175 · Last checked Nov 14, 2026 19:33 UTC
About this property
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.
Property details
- MLS number
- TR25029175
- Status
- Active
- Type
- Residential
- Subtype
- Single Family Residence
- Beds / baths
- 6 Beds • 7 Baths
- Living area
- 6,726 Sq Ft
- Lot size
- 0.9374 acres
- County
- Los Angeles
- Year built
- 1994
- Stories
- 2
More property detailsCollapse
Listing
- Days on market
- 634
Building
- Year built
- 1994
- Year built source
- Assessor
- Architectural style
- Custom, See Remarks
- Stories
- 2
- Building stories
- 2
- Levels
- Two
- Entry level
- 1
- Construction
- Stucco
- Roof
- Tile
- Foundation
- Slab
- Condition
- Updated Remodeled, Turnkey
- Living area source
- Assessor
Bathrooms
- Full bathrooms
- 7
Rooms & interior
- Main-level bedrooms
- 1
- Main-level bathrooms
- 2
- Rooms
- Bedroom, Entry Foyer, Family Room, Foyer, Laundry, Living Room, Primary Bathroom, Primary Bedroom, Office, Other, Dining Room
- Appliances
- Six 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
- Interior features
- 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 Closets
- Flooring
- See Remarks, Wood
- Heating
- Central, Fireplaces
- Cooling
- Central Air, See Remarks
- Fireplace
- Family Room, Gas, Living Room, See Remarks
- Laundry
- Washer Hookup, Gas Dryer Hookup, Inside, Laundry Room, See Remarks
Exterior & parking
- Total parking spaces
- 4
- Garage spaces
- 4
- Parking
- Direct Access, Driveway, Garage, Garage Door Opener, See Remarks
- Attached garage
- Yes
- Pool
- In Ground, Private, Association
- Spa
- In Ground, Private
- Patio / porch
- Covered
- Lot features
- Back Yard, Corners Marked, Front Yard, Garden, Lot Over40000 Sqft, Landscaped, Sprinklers Timer, Street Level
- Lot size source
- Assessor
- Fencing
- Wrought Iron
- Property outlook
- City Lights, Hills, Mountains, Neighborhood, Panoramic
Utilities & community
- Water
- Public, See Remarks
- Sewer
- Public Sewer
- Utilities
- Electricity Connected, Sewer Connected, Water Connected
- Community features
- Hiking, Park, Gated
- Association amenities
- Clubhouse, Controlled Access, Sport Court, Horse Trails, Meeting Room, Management, Outdoor Cooking Area, Other, Picnic Area, Playground, Pickleball, Pool, Guard, Security, Trails
Fees & lease terms
- Association
- Yes
- Association fee
- $350.00
- Association fee frequency
- Monthly
Schools reported in the listing
- Elementary school
- Quail Summit
- Middle / junior school
- Chaparral
- High school
- Diamond Bar
- High school district
- Walnut Valley Unified
School information is supplied with the listing. Confirm current attendance boundaries and enrollment eligibility directly with the school district.
Nearby public schools
Nearby does not mean assigned. These are approximate straight-line distances from the property, not walking or driving routes. Confirm attendance boundaries, enrollment eligibility, grades and current school status directly with the district.
| School / district | Grades | Distance |
|---|---|---|
| Quail Summit Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 0.4 mi |
| Chaparral Middle (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | 6–8 | 0.8 mi |
| Maple Hill Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 1.2 mi |
| Pantera Elementary (school website, opens in a new tab) Pomona Unified · Diamond Bar | K–6 | 1.5 mi |
| Lorbeer Middle (school website, opens in a new tab) Pomona Unified · Diamond Bar | 7–8 | 1.7 mi |
| Evergreen Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | K–5 | 2.0 mi |
| Armstrong Elementary (school website, opens in a new tab) Pomona Unified · Diamond Bar | Not reported | 2.1 mi |
| Diamond Bar High (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar | 9–12 | 2.1 mi |
Source: California Department of Education · 2025-26 school locations. Downloaded Oct 2, 2026 UTC. This annual snapshot may not reflect later changes. Public schools only; not a complete list of education options. No ratings or attendance assignments are provided.
Check the California School Directory ↗Price and tax history
Asking price
- Current asking price
- $3,990,000
- MLS-reported original asking price
- $3,990,000
| Observed (UTC) | Asking price |
|---|---|
| Nov 6, 2026 08:11 | $3,990,000 |
MLS values are reported for this listing, not prior sales. Observation dates show when our importer saw an asking price, not when the MLS changed it. Up to 24 observations are retained; changes between refreshes may be missed. This is not a complete price or sales history.
Property taxes
Tax history is not available from the imported listing data.
Source: MLS feed. Only supplied tax years are shown, up to 10 years; this is not a county tax archive. Amounts may be corrected and taxes may change after purchase. Verify assessments and current taxes with the county. These values do not automatically fill the payment calculator.
Market trends in Diamond Bar
Active residential homes for sale in Diamond Bar, CA, available through this website's authorized feed. Includes residential subtypes; excludes rentals. Not the entire market or a valuation of this property.
Observed price activity · past 30 days
32 currently active listings have an observed price-change pair ending in this period. A listing can appear in both counts.
Calculated 2026-11-14 21:09 UTC. Source: this website's authorized MLS inventory. Import progress, freshness rules and coverage affect the figures. Medians exclude missing/invalid values; price per sq ft is the median of individual listing ratios. Price observations are limited to the last 24 per listing and may miss changes between refreshes. This is not a complete 30-day market report, historical inventory trend, appreciation measure, or sold-price analysis.
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