21504 Cold Spring, Diamond Bar, California 91765, Diamond Bar, 91765 - 4 bed, 3 bath
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Diamond Bar, California 91765
This Stunning Hillside Residence is a Strong Value Opportunity, listed at $1,580,000—positioned well below the $1,693,111 Fair Market Value by 6%. This valuation gap offers $113,111 in Instant Equity. Featuring a Good Condition Rating, the home includes Paid-off Solar, Tesla EV Charging, and a Private Pool with panoramic views. Located in the elite Walnut Valley Unified School District, this property is an ideal acquisition for Buy-and-Hold Investors or Owner-Occupants seeking a premium, energy-efficient lifestyle.
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 21504 Cold Spring Subject | $1,580,000* List Price | 4 | 3 | 2,712 | $624 | - |
A 3249 Hawkwood Road Sold | $1,505,000 | 4 | 3 | 2,712 | $555 | 0.2 mi |
B 21535 Chirping Sparrow Sold | $1,680,000 | 4 | 3 | 2,697 | $623 | 0.2 mi |
C 3628 Hawkwood Sold | $1,396,888 | 4 | 3 | 2,334 | $598 | 0.4 mi |
D 21187 Ambushers Sold | $1,518,888 | 4 | 3 | 2,397 | $634 | 0.2 mi |
E 21307 Chirping Sparrow Road Sold | $1,330,000 | 4 | 3 | 2,302 | $578 | 0.3 mi |
F 3396 Hawkwood Sold | $1,250,000 | 4 | 3 | 2,380 | $525 | 0.2 mi |
G 3106 Cherrydale Active | $1,390,000 List Price | 4 | 3 | 2,640 | $527 | 0.2 mi |
* Subject property listed price vs sold prices of comps.
Property is move-in ready.
While built in 1977, the property is well-maintained and move-in ready with significant system upgrades including a newer roof, newer A/C, paid-off solar, and EV charging stations. The kitchen features a functional renovation (approx. 5-15 years old) with stone countertops and stainless appliances, fitting the 'Good' criteria for age of renovation and maintenance level.
The property has a large lot size, which is more than 4 times of its living area. lot size in square feet = 14248, living area = 2712.
High School: Diamond Bar High School (10/10).
The property is situated within the prestigious Walnut Valley Unified School District, providing access to top-rated 10/10 schools, which significantly bolsters long-term resale value.
Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 4, other record bedroom count = 3.
Built in 1977, the home may require additional capital investment for cosmetic interior updates to kitchens and bathrooms to meet modern luxury expectations.
At a list price of $1.58M, the property is positioned at the higher end of the local market, which may narrow the pool of competitive buyers in the current interest rate environment.
Enjoy beautiful mountain views by day and sparkling city lights by night from this lovely home nestled in the desirable hills of Diamond Bar, complete with a private pool perfect for relaxing or entertaining. Energy-efficient upgrades include fully paid-off solar, two Tesla EV charging stations, an electric water heater, a whole-house water softener system, newer roof, and newer A/C. The bright and airy layout features soaring high ceilings in the living room, abundant natural light, a desirable downstairs bedroom, and a spacious 3-car garage. Located within the award-winning Walnut Valley Unified School District with top-rated 10/10 schools, and just minutes from Diamond Hills Plaza featuring H Mart, popular dining, shopping, and everyday conveniences. NO HOA.
No exterior & parking available.
Grades K-5 • 0.4 mi
Grades 6-8 • 1.7 mi
Grades 9-12 • 1.2 mi
No sensitive facilities data found.
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 4.0 | 4.0 | 50% |
| Baths | 3.0 | 3.0 | 50% |
| Square foot | 2,712 | 2,155 | 77% |
| Lot Size | 14,248 | 10,079 | 74% |
| Price | $1.58M | $1.25M | 82% |
| Price per sq ft | $583 | $578 | 52% |
| Built year | 1977 | 1977 | 50% |
| HOA | $0 | $0 | 50% |
| Days on market | 7 | 137 | 2% |
May 30, 2026
$1,580,000
Initial Listing
Jan 20, 2012
$700,000
Public Record
Sep 26, 1995
$294,500
Public Record