21078 Willow Heights, Diamond Bar
$2,498,000
5 bd · 4.5 ba · 3,312 sqft · Home · Diamond Bar · 86 days on market
Updated August 10, 2026












Key Facts
- Price / SqFt
- $754
- Property Type
- Home
- Year Built
- 2015
- Lot Size
- 7,642 sqft
- Garage
- 3 cars
- Stories
- 2
- HOA
- $172/mo
- Days on Market
- 86
- Listed
- May 17, 2026
- MLS #
- WS26108557
- Status
- Active
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About this home
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.
Highlights
- 5-bedroom, 4.5-bath home.
- 3,312 square feet of living space.
- Located in Diamond Bar.
Price History
| Date | Price | Change |
|---|---|---|
| Aug 10, 2026 | $2,498,000 | — |
| Listed May 17, 2026 | ||
Location
About Diamond Bar
- Active Listings
- 83
- Median Price
- $1,136,800
Estimate a Monthly Payment
Estimated Monthly Payment
$16,314/mo
Includes estimated taxes and insurance at the assumption rates below. HOA dues are not included — enter your community's HOA (varies widely by community, and absent from listing data) for an accurate total.
- Principal & Interest
- $13,295
- Property Tax
- $2,290
- Insurance
- $729
- HOAnot included — enter your dues
- $0
Estimate only — not a loan offer or rate quote. Confirm actual figures with a lender.
Get Pre-Approved →Listing courtesy of Beverly and Company, Inc.
Based on information from California Regional MLS as of 2026-08-11T01:12:07.387Z. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS.