23240 Ridge Line, Diamond Bar, CA 91765

Beds

Baths

7,884

Sq ft

$389

Per sq ft

About this home

Highly motivated seller ready to make a quick sale-bring your serios offers today! Located within Diamond Bar’s prestigious guard-gated community of "The Country," this magnificent custom estate offers an extraordinary blend of luxury, scale, and breathtaking mountain views. Spanning an expansive '7,884 sq. ft."' of living space, the residence features "6 bedrooms and 8 bathrooms", along with a convenient elevator servicing all 4 levels plus an upper loft. Designed for grand entertaining and modern living, the home highlights " a rare indoor basketball court with high ceilings"—easily adaptable into a grand game room, home theater, or entertainment hall. Step outside to your private resort-style oasis complete with " an infinity pool "overlooking stunning canyon and mountain vistas. Zoned for the highly acclaimed Walnut Valley Unified School District, this exceptional property delivers ultimate privacy and prestige. Exceptional value and priced for a quick sale.

Type

Single Family Residence

Year built

1987

Lot

47,743 sq ft (1.10 ac)

Garage

3 car

HOA

$264/mo

Pool

Private pool

View

City Lights

Solar

—

Estimated payment

$19,625/mo

Principal & interest$15,524
Property tax (est.)$2,942
Home insurance (est.)$895
HOA$264

Down payment: 20% ($614,000)Interest rate %

Example only, not a loan offer. Rate is a placeholder; ask a lender for today's. Taxes vary by neighborhood (Mello-Roos).

Listing provided courtesy of Julie Cheng, Universal Elite Inc., julielynncheng@gmail.com. MLS# TR26225673. Based on information from California Regional Multiple Listing Service, Inc. as of November 1, 2026 at 8:00 AM Pacific. Information is deemed reliable but not guaranteed and is provided exclusively for consumers' personal, non-commercial use to identify prospective properties they may be interested in purchasing. Coldwell Banker Associated Brokers Realty, CA DRE #00939614.