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Diamond Bar, CA

$6,990,000

22588 Ridge Line Road, Diamond Bar, CA
11
Beds
13
Baths
17,241
Sq Ft
2008
Built
80
Days listed

About this home

Luxurious 17,000-square-foot mansion located in the renowned “The Country Estates”. This efficiently designed residence features nine generously sized en-suite bedrooms, along with two huge primary suites and two powder rooms on the main level, totaling 11 bedrooms and 13 bathrooms. Situated on approximately 1.2 acres of well-maintained landscaping, the home captures breathtaking views of city lights and scenic hills from multiple vantage points. Upon entry, you’re welcomed by polished marble floors, soaring vaulted ceilings, and an impressive foyer with a dual staircase. The main level open-concept living areas create a bright and inviting atmosphere, ideal for both everyday living and entertaining and are equipped with two powder rooms and a bar area that’s perfect for hosting guests. The gourmet kitchen is designed for both functionality and style, featuring a large island, an oversized butler’s pantry, and additional high-end features to support daily living and entertaining needs. An elevator adds convenience and accessibility throughout the home. The ten-car garage provides ample space for large households or car enthusiasts. Additional interior highlights include a private game room, home theater, and a dedicated meditation room. The backyard offers an Italian villa-inspired retreat, designed for relaxation and complete with a Pool, Spa, BBQ station. Carefully crafted, this home blends refined elegance with everyday comfort. Located in a highly sought-after community with top-rated schools, the HOA includes 24-hour guard-gated security and amenities such as a community pool and spa, tennis courts, a clubhouse, and more. Come experience everything this exceptional property has to offer.

Facts & features

Interior
Bedrooms
11
Bathrooms
11 full, 2 half
Living area
17,241 sq ft
Interior features
Wet Bar, Balcony, Crown Molding, Cathedral Ceilings, Central Vacuum, Elevator, Granite Counters, High Ceilings, Intercom, Multiple Staircases, Open Floorplan, Pantry, Partially Furnished, Stone Counters, Recessed Lighting, Storage, Two Story Ceilings, Bar, Wired For Sound, Bedroom On Main Level, Entrance Foyer
Appliances
Built In Range, Barbecue, Convection Oven, Double Oven, Dishwasher, Freezer, Gas Cooktop, Gas Oven, Gas Range, Gas Water Heater, Microwave, Refrigerator, Range Hood, Vented Exhaust Fan, Water Heater, Warming Drawer, Dryer, Washer
Flooring
Carpet, Tile
Fireplace
Living Room
Heating
Central, Fireplaces, Natural Gas
Cooling
Central Air
Laundry
Inside, Laundry Room, Upper Level
Levels
Multi Split
Spa
Association, Community, In Ground, Private
Exterior & lot
Lot size
1.225 acres (53,347 sq ft)
Pool
Community, Fenced, In Ground, Private, Association
View
Hills
Year built
2008
Parking
Direct Access, Driveway, Garage, Oversized, Private, Garage Faces Side
Parking spaces
10
Community
Area
616 - Diamond Bar
County
Los Angeles
Community features
Curbs, Horse Trails, Suburban, Sidewalks, Gated, Pool
HOA fee
$308/mo
Listing details
Status
Active
Property type
Single Family Residence
Days on market
80
Listed
2026-03-27
Original price
$7,990,000
Terms
Cash, Cash To New Loan
Parcel #
8713029021
MLS #
TR26059752
Listed by
Amie Chen · ReMax 2000 Realty

Location

Price history

Listed
$7,990,000 · 2026-03-27
Price reduced
$6,990,000 (−$1,000,000)
Days on market
80
Current price
$6,990,000
Financing

Could this home be yours?

Estimated monthly payment
$43,850
$35,345 principal & interest · $8,505 taxes & insurance
$1,398,000
Estimate only
Loan $5,592,000

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Estimated value range nearby
$9,556,317$11,218,286

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Listing data provided by CRMLS

Listing courtesy of ReMax 2000 Realty. © 2026. The multiple listing data appearing on this website is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for the consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the consumer may be interested in purchasing. All data, including but not limited to 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. The listing broker's offer of compensation is made only to participants of the MLS where the listing is filed. Last updated July 26, 2026 Equal Housing Opportunity.

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