21415 Running River Court, Diamond Bar, California 91765, Diamond Bar, 91765 - 4 bed, 2 bath
21415 Running River Court
Diamond Bar, California 91765
Property Price
SUMMARY
Estimated Market Value
Comparable Sales Map
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 21415 Running River Court Subject | $1,080,000* List Price | 4 | 2 | 1,554 | $689 | - |
A 1826 1826 Wellspring Sold | $1,152,000 | 4 | 2 | 1,708 | $674 | 0.2 mi |
B 2624 Crooked Creek Drive Sold | $1,030,000 | 4 | 2 | 1,688 | $610 | 0.8 mi |
C 2819 Castle Rock Sold | $980,000 | 4 | 2 | 1,288 | $761 | 1.0 mi |
D 1748 Autumnglow Drive Sold | $1,058,000 | 3 | 2 | 1,550 | $683 | 0.1 mi |
E 22511 Eddridge Drive Sold | $1,168,000 | 4 | 2 | 1,600 | $730 | 1.0 mi |
F 2463 Harmony Hill Sold | $1,300,000 | 4 | 2 | 1,831 | $710 | 0.6 mi |
* Subject property listed price vs sold prices of comps.
Condition Analysis
OVERALL CONDITION SCORE
Property is new construction or fully renovated.
Although built in 1977, the property has undergone extensive recent renovations that meet modern quality standards. The home features a fully remodeled kitchen with a center island and stainless steel appliances, updated bathrooms with contemporary finishes, and high-quality wood and tile flooring throughout. Additional upgrades include recessed lighting, crown molding, and energy-efficient dual-pane vinyl windows, making it a turn-key property with no visible deferred maintenance.
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 = 7976, living area = 1554.
- Premier School District
Situated in the highly-coveted Walnut Valley Unified School District and within walking distance to Diamond Bar High School, providing significant long-term value and appeal for families.
- Turn-Key Upgrades
The property features extensive modern improvements, including a remodeled kitchen with a center island, updated bathrooms, crown molding, and energy-efficient dual-pane vinyl windows.
CONSRISKS & DEFICIENCIES
- Compact Square Footage
With 1,554 square feet distributed across four bedrooms, the individual room sizes may feel small or constrained for buyers seeking more expansive living areas.
- Bedroom Configuration
Although listed as four bedrooms, one is currently configured as an office, which may require additional effort or cost to convert back into a traditional bedroom if needed.
About 21415 Running River Court
Super cute single story home on a quiet Cul-de-Sac in Walnut School District. Walking Distance to Diamond Bar High School. Charming home with a great floor plan and upgrades throughout. Great curb appeal with front porch! formal living room has vaulted ceiling, bright open kitchen has center island and stainless steel appliances, spacious family room has vaulted ceiling and fireplace. per title: there are 4 bedrooms but one bedroom is used as a office. Beautiful wood and tile flooring throughout, custom neutral wall colors, crown molding, updated kitchen and baths, updated vinyl framed dual pane windows. private backyard has two covered patios and plenty of room for children to play.
Property Details
Public Facts
- Property Type
- Single Family Residence
- Year Built
- 1977
- Lot Size
- 7,976 Sq. Ft.
Interior
- Total Bedrooms
- 4
- Total Bathrooms
- 2 (2 Full, 0 Half)
Exterior & Parking
No exterior & parking available.
Utilities & Misc
- HOA Fee
- $0 / Month
Neighborhood Insights
Sensitive Facilities
No sensitive facilities data found.
Neighborhood Comparison
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 4.0 | 4.0 | 50% |
| Baths | 2.0 | 3.0 | 44% |
| Square foot | 1,554 | 1,903 | 21% |
| Lot Size | 7,976 | 10,005 | 24% |
| Price | $1.08M | $1.16M | 43% |
| Price per sq ft | $695 | $583 | 87% |
| Built year | 1977 | 1977 | 50% |
| HOA | $0 | $0 | 50% |
| Days on market | 9 | 163 | 1% |
Pricing History
Listed for Sale
Feb 27, 2026
$1,080,000
Initial Listing
Price Change
Feb 25, 2026
$108,000
Initial Listing