21408 Running River Court, Diamond Bar, California 91765, Diamond Bar, 91765 - 5 bed, 4 bath
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Diamond Bar, California 91765
This Spacious Single Family Residence is a High-Potential Investment Opportunity, listed at $1,300,000—positioned slightly above the $1,266,518 Fair Market Value. While the property shows a Condition Rating of 4, it offers significant upside through modernization of its 1970s-era interiors. The home features a private in-ground pool and covered patio, providing a strong foundation for outdoor living. Given the recent sale history and the need for cosmetic updates, this property is an ideal acquisition for Value-Add Investors or Owner-Occupants seeking to build equity through strategic renovations.
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 21408 Running River Court Subject | $1,300,000* List Price | 5 | 4 | 2,334 | $543 | - |
A 2118 Tierra Loma Sold | $1,315,000 | 5 | 3 | 2,468 | $533 | 0.4 mi |
B 22105 Birds Eye Sold | $1,429,000 | 4 | 3 | 2,690 | $531 | 0.7 mi |
* Subject property listed price vs sold prices of comps.
Property is moderate renovation needed.
Built in 1977, the home shows some updates like stainless steel appliances and newer flooring, but remains largely dated with 1970s-style wood paneling, wallpaper, and older bathroom fixtures that exceed the 20-year threshold for modern standards.
The property features a private in-ground pool and a covered patio within a fenced backyard, offering an ideal space for relaxation and entertainment in the Southern California climate.
With 5 bedrooms and 4 bathrooms, this home provides a rare and versatile floor plan that comfortably accommodates large families or multi-generational living arrangements.
The kitchen is updated with full stainless steel appliances and a decorative accent backsplash, providing a contemporary and move-in-ready aesthetic for the heart of the home.
Lot size discrepancy between mls listing and other public or private record. mls listing lot size in square feet =7980, other record lot size in square feet = 7595. Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 5, other record bedroom count = 4.
The property was recently sold within the past year on 2026-04-27. The sold price is $1,183,500.00.
The property is noted as having no views, which may be a competitive disadvantage in the Diamond Bar market where hillside or city light vistas are highly coveted.
Picture yourself at 21408 Running River Ct, a residence designed for everyday comfort and enjoyment. Inside, a cozy fireplace provides warmth, while the kitchen features all stainless steel appliances complemented by an accent backsplash. The exterior boasts a covered patio extending to a in ground pool, all within a fenced in backyard. This property is perfect for outdoor living and comfort. Included 100-Day Home Warranty with buyer activation
No exterior & parking available.
No sensitive facilities data found.
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 5.0 | 4.0 | 74% |
| Baths | 4.0 | 3.0 | 79% |
| Square foot | 2,334 | 2,155 | 63% |
| Lot Size | 7,980 | 10,041 | 27% |
| Price | $1.30M | $1.25M | 55% |
| Price per sq ft | $557 | $576 | 45% |
| Built year | 1977 | 1977 | 50% |
| HOA | $0 | $0 | 50% |
| Days on market | 8 | 137 | 2% |
May 29, 2026
$1,300,000
Initial Listing
Apr 27, 2026
$1,183,500
Public Record
Jul 12, 2011
$590,000
Public Record
Jan 17, 2006
$710,000
Public Record
Jun 20, 2001
$332,000
Public Record
Aug 4, 1998
$269,000
Public Record