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20508 Crestline Dr. Diamond Bar, CA 91765
$1,678,000 4 beds, 4 baths
3, 164 sqft
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Striking panoramic-view residence set within the prestigious "Diamond Ridge Estates "community of Diamond Bar and located in the award-winning Walnut Valley Unified School District. Designed for both refined living and grand-scale entertaining, this exceptional 4-bedroom, 3.5-bath home makes an immediate statement with an elegant double-door entry opening to a dramatic grand foyer, soaring ceilings, and an abundance of natural light. The formal living room offers an impressive sense of volume, while the cathedral-ceiling dining room creates a sophisticated setting for unforgettable gatherings. The thoughtfully designed floor plan includes a desirable main-level en-suite bedroom with a private bath, ideal for guests, extended family, or multigenerational living. At the heart of the home, the open-concept kitchen features a generous center island and flows seamlessly into the spacious family room with high ceilings and a cozy fireplace, creating an inviting setting for everyday living and entertaining. Upstairs, the expansive primary suite offers two spacious walk-in closets and a well-appointed bath with a separate shower and soaking tub. Additional highlights include an individual laundry room with ample built-in cabinetry, fresh interior and exterior paint, new waterproof wood flooring throughout much of the renovated interior, and custom tile flooring at the entry and kitchen. Outdoors, the property continues to impress with a generously sized front yard, an expansive private driveway offering ample parking, and a charming sitting area beyond the low decorative iron gate—perfect for relaxing and enjoying the peaceful surroundings. The spacious backyard with patio provides another wonderful setting for entertaining while taking in spectacular canyon and mountain views. Elegant slate fountain with a serene pond and cascading waterfall, creating a sophisticated outdoor focal point. Conveniently located near the 60 and 57 Freeways, this distinctive Diamond Ridge home offers an exceptional combination of location, lifestyle, flexibility, and breathtaking scenery.

Listing Details

Property type: Single Family Residence (Single Family)
Status: Active
MLS# TR26205561
List price is $1,678,000
HOA Fee is $120.00
Beds: 4
Baths: 4 (3 full) (1 half)
Family Room fireplaces
Built in 1996
3,164 sqft
2 stories
0.23 acres
Lot size: 0.2323
County: Los Angeles
Interior features: Bedroom on Main Level,Entrance Foyer,Primary Suite,Walk-In Pantry,Walk-In Closet(s)
Appliances: SixBurnerStove,Dishwasher,Electric Water Heater,Disposal,Microwave
Lot description: Back Yard,Front Yard,Garden,Lawn
Heating/cooling: Central Air,Electric
Heating description: Central
MLS area: 616 - Diamond Bar

Last Updated: 9/28/2026

 Find more Diamond Bar homes and real estate

 Find more homes in 91765 zip code

This listing belongs to the 616 - Diamond Bar MLS area

Lat/Long: 33.971367, -117.854932.
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Listing Agent: Lucy Chien
Lic#: 01276603
Office Name: Tustin

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Area Overview

Total population of , which has changed by % since 1990.
The median age of the population is , while the median age of dwellings is .
Out of households, are families.

Community Characteristics:

Occupancy Type

White/Blue Collar Jobs

Population by Gender

Hispanic/Non-Hispanic Population

Compared to National:

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