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Land with Home for Sale in Diamond Bar, California

22621 Ridge Line Rd, Diamond Bar, CA 91765

$2,680,000
1.79 acres
Active sale
ago
Est $14,752/mo

Welcome to Your Private Hilltop Sanctuary.

Nestled within Diamond Bar’s highly prestigious, 24-hour guard-gated community of The Country Estates, this fully reimagined masterpiece offers a rare blend of classic curb appeal and breathtaking, ultra-modern design. Shielded by mature landscaping, this estate invites you to experience a lifestyle defined by uncompromising luxury, sweeping valley sunsets, and sparkling city-light views.

Step through the illuminated entryway into a sun-drenched, open-concept floor plan beautifully anchored by custom vertical wood-slat architectural paneling, wide-plank oak-toned flooring, and brilliant crystal chandeliers. The gourmet chef’s kitchen is an entertainer's dream, featuring a massive quartz waterfall island and a farmhouse sink, flowing seamlessly into a formal dining space warmed by a marble-clad fireplace. You can effortlessly host guests in the formal living room with its built-in beverage center, or find your daily peace in the dedicated, window-lined Zen lounge. Ascending the striking glass-framed staircase reveals a sprawling upper-level entertainment loft alongside a dedicated billiard room with private deck access. For the modern professional, a refined executive office offers a quiet workspace complete with custom solid-wood built-ins and glass-paned French doors.

The primary suite is a true resort-style retreat designed to capture unobstructed hilltop horizon views. Its spa-caliber en-suite rivals five-star hotels, appointed with a deep freestanding soaking tub, a frameless glass rainfall shower, brushed gold fixtures, and a massive custom walk-in closet. Generously sized secondary bedrooms offer VIP treatment with bespoke board-and-batten woodwork, while the pristine guest baths feature designer finishes, and high-tech smart bidets.

The perfection extends to a fully finished, expansive garage featuring pristine epoxy flooring, custom dark-oak cabinetry, and an integrated luxury laundry center. Step outside to the modern, cable-railed view decks for al fresco dining under the stars, seamlessly expanding your living space into the California golden hour.

Residents of The Country Estates including a massive indoor sports complex, pristine clay and hard tennis courts, pickleball, a community pool, and miles of scenic equestrian trails. Zoned for the award-winning Walnut Valley Unified School District, this estate is more than just a stunning residence—it is a legacy property.

3,699
Sq feet
4
Beds
4
Full baths
1977
Built

Location

Street address
22621 Ridge Line Rd
School district
Walnut Valley Unified
Elevation
1,153 feet
Coordinates
33.9851, -117.8215

Directions

From the 57 Freeway, exit Diamond Bar Blvd and head south. Turn right on Pathfinder Road, then left on Quail Summit Drive. Continue uphill and turn right on Ridge Line Road. The property will be on your right side.

Property details

Acreage
1.785 acres
Zoning
LCR140000*
MLS #
MRMLS PW26087846
Posted

Expenses

Home Owner Assessments Fee
$350 monthly

Parcels

  • 8713006023

Details and features

Listing

Type
Residential
Subtype
Single Family Residence

Lot

View
Canyon, City, Hills, Mountain, Panorama, Valley

Exterior

Parking Spaces
4
Parking
Driveway, Garage
Features
0-1 Unit/Acre, Lot Over 40000 SQFT, Sidewalks, Street Lights Community Features Included

Structure

Stories
3
Heating
Central
Cooling
Central Air

Interior

Rooms
Bathroom x 4, Bedroom x 4, Exercise Room, Kitchen, Living Room, Office
Flooring
Vinyl
Appliances
Cooktop, Dishwasher, Electric Cooktop, Microwave, Refrigerator, Washer
Features
2+ Access Exits, Furnished, High Ceilings, Parking

Listing history

DateEventPriceChangeSource
Apr 24, 2026New listing$2,680,000MRMLS
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This 1.785-acre property is located at 22621 Ridge Line Rd in Diamond Bar, CA 91765. The property is available for sale for $2,680,000. It has a 3,699 sq ft 4 bedroom, 4 bath house built in 1977.

Checked 1 hour ago — Updated

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