22621 Ridge Line Road, Diamond Bar, CA 91765

$2,680,000

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,… Read More 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. Read Less

Listing Snapshot

Days Online

Last Updated

Apr 25, 2026

Property Type

SingleFamilyResidence

Beds

Full Baths

Square Ft.

3,699

Lot Size

1.78 Acres

Year Built

1977

MLS Number

PW26087846

Additional Details

Appliances & Equipment

Dishwasher, ElectricCooktop, Microwave, Refrigerator, WaterHeater, Dryer, Washer

Building

Built in 1977, Living area: 3699.0, Living area units: SquareFeet, 3 stories, Levels: ThreeOrMore, Entry level: 2, Entry location: 2

Community

StreetLights, Sidewalks, Gated

Cooling

CentralAir

Accessibility Features

SafeEmergencyEgressFromHome, Parking

Fireplaces

DiningRoom, FamilyRoom, LivingRoom

Floors

Vinyl

Garage

4 spaces

Heating

Central

Home Owner's Association

Association Fee: $350, Fee Frequency: Monthly, Amenities: SportCourt, OtherCourts, Pickleball, Pool, Guard, Security, TennisCourts

Interior Features

SeparateFormalDiningRoom, Furnished, HighCeilings, WalkInClosets

Laundry

InGarage

Lot

1.7847 acres, ZeroToOneUnitAcre, LotOver40000Sqft

Parking

4 total parking spaces, Driveway, Garage

Pool

Association

Property

UpdatedRemodeled, Turnkey, CityLights, Canyon, Hills, Mountains, Panoramic, Valley, TreesWoods

Security Features

CarbonMonoxideDetectors, GatedCommunity, GatedWithAttendant, SmokeDetectors

Sewer

PublicSewer

Taxes

Additional parcels description:, Parcel Number: 8713006023, Lot: 22, Zoning: LCR140000*

Utilities

ElectricityAvailable, NaturalGasAvailable, SewerAvailable, WaterAvailable, Water Source: Public

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22621 Ridge Line Road

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