22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
22588 Ridge Line Road, Diamond Bar
1 / 9 For Sale
For Sale

22588 Ridge Line Road

Diamond Bar, CA 91765 · Listed Mar 27, 2026 · 146 days on market

$6,500,000

  • 11Beds
  • 12Baths
  • 17,241Sqft
  • 53,347Lot Sqft

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

As reported to the California Regional MLS by the listing agent; buyer to verify.

Bedrooms & Bathrooms

  • Bedrooms: 11
  • Bathrooms: 12 (11 full · 2 half)
  • Main-level bedrooms: 2
  • Main-level bathrooms: 4

Interior & Layout

  • Living area: 17,241 sq ft
  • Levels: Multi split
  • Entry level: 1 (front door)
  • Wet bar · Balcony · Crown molding · Cathedral ceiling(s) · Central vacuum · Elevator · Granite counters · High ceilings · Intercom · Multiple staircases · …
  • Flooring: Carpet · Tile
  • No common walls
  • Accessibility: Safe emergency egress from home · Accessible elevator installed · Parking

Systems & Appliances

  • Fireplace: Living room
  • Heating: Central · Fireplaces · Natural gas
  • Cooling: Central air
  • Built-in range · Barbecue · Convection oven · Double oven · Dishwasher · Freezer · Gas cooktop · Gas oven · Gas range · Gas water heater · …
  • Laundry: Inside laundry · Laundry room · Upper level

Parking

  • Attached garage: 10 spaces
  • Total parking: 10 spaces
  • Direct garage access · Driveway · Garage · Oversized · Private · Garage faces side

Construction & Utilities

  • Year built: 2008
  • Sewer: Public sewer
  • Water: Public
  • Security: Gated with guard · Gated community · Gated with attendant · Twenty four hour security

Lot, Outdoor & Community

  • Lot: 53,347 sq ft (1.22 acres)
  • Lot features: 0–1 unit per acre · Lot over 40,000 sq ft · Landscaped · Sprinkler system
  • View: Hills
  • Pool: Community · Fenced · In-ground · Private · Association
  • Spa: Association · Community · In-ground · Private
  • Exterior: Barbecue
  • Patio / porch: Rear porch · Covered · Front porch
  • Other structures: Gazebo
  • Horse: Riding trail
  • HOA: $308 / month · Diamond Bar Country Estate
  • HOA amenities: Clubhouse · Sport court · Horse trails · Management · Barbecue · Picnic area · Playground · Pickleball · …
  • Community: Curbs · Horse trails · Suburban · Sidewalks · Gated · Pool

Listing Details

  • MLS #: TR26059752
  • Price history: $7,990,000 original → $6,500,000 (changed Sep 11)
  • Financing terms: Cash · Cash to new loan
  • Occupant: Vacant
  • Virtual tour

Payment estimate

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  • Principal & interest
  • Property tax
  • Home insurance
  • HOA dues
  • Mortgage insurance (PMI)

Estimated cash to close (down payment + about 2.5% closing costs)

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Location

The Property & Neighborhood

Satellite view · 22588 Ridge Line Road, Diamond Bar, CA 91765 · Click the map to enable scroll zoom

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Questions about 22588 Ridge Line Road? Leave your details and Duri Hussain (Real Brokerage Technologies) will get back to you shortly — your message goes to Duri, not to the listing agent.

Listing Office: ReMax 2000 Realty · Listing Agent: Amie Chen. Based on information from California Regional Multiple Listing Service, Inc. as of September 11, 2026 at 5:01 pm. 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.

MLS# TR26059752 · Presented by Duri Hussain, Realtor® (DRE# 02234095) · Real Brokerage Technologies (DRE# 02022092)