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5 Beds
5 Baths
3,312 sqft

$2,498,000

21078 Willow Heights, DIAMOND BAR CA, 91765

Price per sqft$754.23
Built in2015
Property size3,312 sqft
Property typeResidential

Overview

Active

Listed May 18, 2026

Updated 9 days ago

EXPERIENCE THE PINNACLE OF REFINED LIVING IN THIS STUNNING LUXURY RESIDENCE, PERFECTLY SITUATED ON A PREMIUM 7,642 SQFT LOT WITHIN THE EXCLUSIVE GATED COMMUNITY OF WILLOW HEIGHTS AND LOCATED IN THE AWARD-WINNING WALNUT VALLEY UNIFIED SCHOOL DISTRICT. Boasting over $150,00.00 in high-end upgrades and breathtaking 270-degree panoramic view, this house is a masterpiece of design and functionality. Step through the entry, featuring a powder room and deep under-stair storage, into an expansive, sun-drenched open floor plan characterized by recessed lighting, statement chandeliers and elegant tile flooring. The spacious living room effortlessly compliments the adjoining culinary masterpiece. This chef's kitchen features professional-grade GE Monogram stainless steel appliances, including a 6-burner range, oven, dishwasher, wine cooler and built-in refrigerator. The space is anchored by a massive central island with bar seatings, a spacious walk-in pantry and an adjacent dining area perfect of hosting intimate dinners or grand celebrations. The first floor offers a versatile bedroom with walk-in closet and direct bathroom access, ideal for guests or multi-generational living. Ascent the custom hardwood staircase to find a massive loft that serves as a flexible family room, game room or media center. The primary master suite features a large walk-in closet and a spa-like ensuite with a soaking tub, separate shower and private water closet. Additional quarters include two bedrooms sharing a Jack-and-Jill bathroom, a junior suite with its own private bath, a dedicated office/den and a laundry room equipped with a sink, generous storage & cabinetry. Premium upgrades include plantation shutters, customized designer window treatments, tile in all bathrooms/laundry and hardwood flooring throughout the second level, and 12-wired-camera SimpliSafe security system. The interior flows seamlessly to a California Patio, providing a sophisticated space to enjoy the region's idyllic weather and unobstructed views. The meticulously landscaped backyard is a showstopper, featuring elegant light posts and a unique gate designed for additional vehicles or RV storage. Complete with a 3-bay attached garage and solar. Easy access to 57/60 freeways, retail, supermarkets, parks and trails.

$16,619/mo

Est. mortgage payment based on a $2,498,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
WS26108557MR

Interior Features

Bedrooms
5
Bathrooms
5
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
0.18 Acres

Other Property Details

Association Fee Frequency
Monthly
Garage
Yes
View
Yes

Listed by ALICE LIM with Beverly and Company, Inc.
Listing Contact: 626-956-0188 

Based on information from The MLSTM / Combined LA/Westside Multiple Listing Service, Inc. IDX information is provided exclusively for consumers' personal, non-commercial use, it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All information is deemed reliable but not guaranteed and should be independently reviewed and verified. Property locations as displayed on any map are best approximations only and exact locations should be independently verified. All properties are subject to prior sale, change or withdrawal, and may or may not be listed by the office/agent presenting the information. Neither listing broker(s) nor Distinct Concierge Real Estate shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. 

©2026 Combined L.A./Westside MLS. All rights reserved.

Data last updated 9/28/2026

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