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$5,380,000

3000 Windmill, Diamond Bar, CA 91765

Win Tech Investment
8Beds
8Baths
8,725Sq Ft
3Parking
1975Built
1Days Listed
1Lot Sq Ft

About This Property

**THE LAND & LOCATION** 1. PREMIER LOCATION: Perched at 1,100+ ft elevation - one of the highest points in "The Country". 2. VIEWS FOR DAYS: Unobstructed 180 Panoramic Mountain + City Light Views. 3. MASSIVE LOT: 53,055 sqft total. 21,620 sqft of FLAT, usable land. 249.71 ft corner lot frontage. 4. SECURITY: 24-Hour Gated Community. Walnut Valley USD - Diamond Bar HS 10/10. **THE STRUCTURE - BUILT TO LAST** 5. COMMERCIAL-GRADE BUILD: First owner was a commercial developer. Structure + Foundation built to commercial standards. 6. 2,000 SQFT BASEMENT: Includes a reinforced bomb shelter, currently configured as a 120-ft private indoor shooting range. 7. GUEST HOUSE: Detached 2-Bed guest quarters in the side yard. Perfect for family, staff, or income. **THE LEGACY - YOU CANNOT REPLICATE THIS** 8. THE ORCHARD: Backyard is a private botanical sanctuary with 60+ YEAR OLD trees. Avocado, Dragon Fruit, Passion, Citrus, Guava, Macadamia etc 9. WATER FEATURE: Koi Fish Pond + Waterfall for total serenity. 10. 2026 LEGACY RENOVATION: $150,000 Chef's Kitchen Renovation Complete. Featuring Full Miele Appliance Suite, Pot Filler, Double Dishwashers, Zellige Tile & Quartz Island. 5 Bedrooms, Dining & Living Room updated. Move-in ready. This property is for a buyer who values PRIVACY, SECURITY, LAND, and LEGACY.

Jen HuangWin Tech Investment626-823-2388

Property Location

Map

Property Details

Property Type
Detached
Bedrooms
8
Bathrooms
8
Building Area
8,725 Sqft
Living Area
8,725 sqft
Year Built
1975
Stories
1.0
Status
Active
Days on Market
1
Cumulative Days on Market
2
Original Price
$5,380,000

Location & Neighborhood

Local schools, parks, transit, and amenity information is being gathered for this listing. Check back soon for detailed neighborhood insights.

Diamond Bar Market Snapshot

163

Active Listings

$1.1M

Median Price

65

Avg Days on Market

Last updated: Jul 7, 2026

Based on information from California Regional Multiple Listing Service, Inc. as of the date of this data. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing.

$5,380,000