23240 Ridge Line, Diamond Bar, California 91765, Diamond Bar, 91765 - 6 bed, 8 bath
Loading property details...
23240 Ridge Line
Diamond Bar, California 91765
ACTIVE
CONDITION: FAIR
6Beds
8Baths
7,884Sq Ft
47,743Lot Size
Property Price
LIST PRICE$3,070,000
EST. MARKET VALUE
$3,036,240
SUMMARY
This Custom Estate represents a High-Potential Investment Opportunity, listed at $3,070,000—positioned slightly above the $3,036,241 Fair Market Value. While the price reflects the prestige of "The Country" guard-gated community, the Fair Condition Rating suggests that modernizing the 1987 infrastructure will further unlock the value of the 7,884 sq. ft. floor plan. Featuring an indoor basketball court, infinity pool, and panoramic canyon views, this property is zoned for the top-rated Walnut Valley Unified School District. It is an ideal acquisition for Luxury Homebuyers or Value-Add Investors.
Estimated Market Value
$3,036,240
Based on Realkey algorithm analyzing recent comparable sales in Diamond Bar.
Comparable Sales Map
Comparables within 1 miles sold in recently
Map unavailable.
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 23240 Ridge Line Subject 6 bd · 8 ba · 7,884 sqft · $385 | $3,070,000* List Price | 6 | 8 | 7,884 | $385 | - |
A 2250 Indian Creek Sold 6 bd · 9 ba · 7,456 sqft · $449 · 0.7 mi | $3,350,000 | 6 | 9 | 7,456 | $449 | 0.7 mi |
* Subject property listed price vs sold prices of comps.
Condition Analysis
See Full ReportOVERALL CONDITION SCORE
Fair
TeardownExcellent
Property is moderate renovation needed.
Built in 1987 (37 years old), the property falls into the dated category. While the exterior and luxury amenities like the indoor basketball court and infinity pool are significant assets, the age suggests that the kitchen, bathrooms, and major systems (HVAC/Electric) are likely original or past their prime. The 'priced for quick sale' description further indicates a need for interior modernization to align with current luxury market standards.
PROSSTRENGTHS & OPPORTUNITIES
- High Available Lot Utilization
The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 47743, living area = 7884.
- Great Schools
Elementary School: Quail Summit Elementary School (9/10). High School: Diamond Bar High School (10/10).
- Prestigious Gated Community
Located in 'The Country,' Diamond Bar's premier guard-gated enclave, offering elite privacy, security, and a high-status residential environment.
CONSRISKS & DEFICIENCIES
- MLS Listing Discrepancy
Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 6, other record bedroom count = 4.
- Dated Infrastructure
Built in 1987, the property may require significant capital investment for cosmetic updates and system modernizations to meet current luxury standards.
- Complex Vertical Layout
The four-level plus loft configuration may feel disjointed or less accessible to certain buyers compared to modern, wide-footprint luxury estates.
About 23240 Ridge Line
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.
Property Details
Public Facts
- Property Type
- Single Family Residence
- Year Built
- 1987
- Lot Size
- 47,743 Sq. Ft.
Interior
- Total Bedrooms
- 6
- Total Bathrooms
- 8 (8 Full, 0 Half)
Exterior & Parking
No exterior & parking available.
Utilities & Misc
- HOA Fee
- $264.0 / Month
Neighborhood Insights
Diamond Bar Unified Schools
Quail Summit Elementary School
Grades K-5 • 0.5 mi
9/10
Evergreen Elementary School
Grades K-5 • 1.3 mi
8/10
Castle Rock Elementary School
Grades K-5 • 2.0 mi
7/10
Sensitive Facilities
No sensitive facilities data found.
Neighborhood Comparison
| Feature | Subject | Average Home |
|---|---|---|
| Beds | 6.0 | 4.0 |
| Baths | 8.0 | 3.0 |
| Square foot | 7,884 | 2,325.519 |
| Lot Size | 47,743 | 10,258.123 |
| Price | $3.07M | $1.27M |
| Price per sq ft | $389 | $559 |
| Built year | 1987 | 1978 |
| HOA | $264.0 | $207 |
| Days on market | 6 | 56 |
Pricing History
Listed for Sale
Oct 18, 2026
$3,070,000
Initial Listing
Sold
Apr 1, 2022
$2,400,000
Public Record
Sold
Feb 13, 2014
$1,830,000
Public Record
Sold
Nov 6, 2009
$1,072,000
Public Record