Property photo 1
6 Beds
5 Baths
5,797 sqft

$4,000,000

1809 Diamond Knoll, DIAMOND BAR CA, 91765

Price per sqft$690.01
Built in1992
Property size5,797 sqft
Property typeResidential

Overview

Active

Listed Oct 1, 2026

Updated 6h ago

STUNNING DIAMOND BAR ESTATE WITH PANORAMIC VIEWS! Welcome to luxury living in an exclusive gated community in the prestigious Diamond Bar Hills. This immaculate estate offers breathtaking mountain views, soaring vaulted ceilings, beautiful hardwood floors, and an open, light filled floor plan. The gourmet kitchen features quartz countertops, oversized island, stainless-steel appliances, and a stunning glass tile backsplash. The spacious primary suite offers panoramic views and a private wrap-around balcony. Step into your own resort style backyard with a sparkling pool & spa, waterfall grotto, hot tub, built-in BBQ, and gazebo perfect for entertaining or relaxing. A guest house and private gym add even more versatility. Located near premier golf, dining, fitness, and highly acclaimed Walnut Valley Unified schools. Privacy. Luxury. Views. Resort-style living. This exceptional Diamond Bar estate is one you won t want to miss!

$26,612/mo

Est. mortgage payment based on a $4,000,000 home price.

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

Additional information

MLS® ID
DW26217188MR

Interior Features

Bedrooms
6
Bathrooms
5
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
1.04 Acres

Other Property Details

Association Fee Frequency
Monthly
Garage
Yes
View
Yes
Pool
Yes

Listed by Monica De La Riva with Lux Bancorp
Listing Contact: 714-552-4222 

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 Approach Properties Premium Real Estate Services 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 10/7/2026

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