23509 Ridge Line, Diamond Bar, CA 91765 - Photo 1 of 23, Diamond Bar, CA
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$1,699,000

23509 Ridge Line, Diamond Bar, CA 91765

0Beds
0
244Days Listed
2Lot Sq Ft

Listed by Juliet Chung, Country Queen Real Estate | 909-374-0299

About This Property

Located in the prestigious 24hr guard-gated The Country Estates community, this beautiful proposed contemporary residence that is nestled in a highly sought-after location boasting panoramic city lights and mountain views, is graded and ready for construction to be customized and completed by the new owner. Proposed plans for a stunningly perfect contemporary resort-style estate boasting 5 bedroom suites, 7 bathrooms, and approx. 8,000 sqft of pristine and sumptuous living space situated on 1.59 sprawling acres, this sophisticated modern havens offerings would be unlike anything in the community. The immaculate grounds and bountiful amenitiesincluding appealing water features at the elegant main entrance, two exterior balconies, dual professional offices, a lush 8-seat theater, & a gym, a luxurious family rm, living rm - ALL 3 rms with fully openable sliding doors. Incredible luxurious, entertaining backyard boasts a gorgeous infinity edge pool and spa overlooking stunning city light views, BBQ and fire pit areas, and a kids' play area. This estate will offer the possibilities for countless memories. Building plans also include a gourmet chef's kitchen and a service kitchen, featuring a sizable pantry. The upper floor will have the master suite with large his/her closets, enormously lush bathroom, and fully openable sliding doors that lead to an exterior deck. A junior master suite will also feature a walk-in closet and bathroom along with access to an exterior balcony through fully openable sliding doors. The estate will feature a 4-car garage. The existing proposed plans

Property Details

Property Type
Land
Bedrooms
0
Bathrooms
0
Building Area
0 Sqft
Living Area
0 sqft
Year Built
0
Status
Active
Days on Market
244
Cumulative Days on Market
221
Original Price
$1,699,000

Location & Neighborhood

What's nearby 23509 Ridge Line, Diamond Bar, CA 91765

Nearby Schools

Parks & Recreation

Local Amenities

Coffee & Cafes

Dining

POI data updated 2/22/2026

Diamond Bar Market Snapshot

137

Active Listings

$780K

Median Price

90

Avg Days on Market

Last updated: Feb 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.

$1,699,000