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Diamond Bar, CA

$2,480,000

22621 Ridge Line Road, Diamond Bar, CA
4
Beds
4
Baths
3,699
Sq Ft
1977
Built
71
Days listed

About this home

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.

Facts & features

Interior
Bedrooms
4
Bathrooms
4 full
Living area
3,699 sq ft
Interior features
Separate Formal Dining Room, Furnished, High Ceilings, Walk In Closets
Appliances
Dishwasher, Electric Cooktop, Microwave, Refrigerator, Water Heater, Dryer, Washer
Flooring
Vinyl
Fireplace
Dining Room, Family Room, Living Room
Heating
Central
Cooling
Central Air
Laundry
In Garage
Levels
Three Or More
Exterior & lot
Lot size
1.785 acres (77,740 sq ft)
Pool
Association
View
City Lights, Canyon, Hills, Mountains, Panoramic, Valley, Trees Woods
Year built
1977
Parking
Driveway, Garage
Parking spaces
4
Community
Area
616 - Diamond Bar
County
Los Angeles
Community features
Street Lights, Sidewalks, Gated
HOA fee
$350/mo
Listing details
Status
Active
Property type
Single Family Residence
Days on market
71
Listed
2026-04-23
Original price
$2,680,000
Terms
Cash, Conventional, FHA, Va Loan
Parcel #
8713006023
MLS #
PW26087846
Listed by
Minh Nguyen · First Team Real Estate

Location

Price history

Listed
$2,680,000 · 2026-04-23
Price reduced
$2,480,000 (−$200,000)
Days on market
71
Current price
$2,480,000
Financing

Could this home be yours?

Estimated monthly payment
$15,558
$12,540 principal & interest · $3,017 taxes & insurance
$496,000
Estimate only
Loan $1,984,000

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Estimated value range nearby
$2,229,656$2,617,422

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Listing data provided by CRMLS

Listing courtesy of First Team Real Estate. © 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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