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$1,299,999
61 Days On Site

1423 Copper Mountain
Diamond Bar, CA 91765

For Sale|Single Family Residence|Active
4
Beds
3
Total Baths
3
Full Baths
2,380
SqFt
$546
/SqFt
1978
Built
County:
Los Angeles
Listed by Samuel Castorena of Samuel G. Castorena Jr (626) 253-5129
Call Now: (408) 868-2620
Is this the listing for you? We can help make it yours.
(408) 868-2620
1423 Copper Mountain1423 Copper Mountain1423 Copper Mountain1423 Copper Mountain
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Professional pictures coming soon. Nestled on a quiet cul-de-sac in the highly desirable city of Diamond Bar, 1423 Copper Mountain offers the perfect blend of modern upgrades, privacy, energy efficiency, and top-rated schools. Located within walking distance to highly acclaimed Quail Summit Elementary and situated in the award-winning Walnut Valley Unified School District, this beautifully maintained home checks all the boxes for todays buyers. This turnkey property is currently being refreshed with new interior and exterior paint, complementing the homes updated kitchen and modern contemporary feel throughout. From the moment you walk in, youll notice the pride of ownership and attention to detail that make this home truly move-in ready. Step outside into your own private backyard retreat featuring mature fruit trees, peaceful surroundings, and scenic city light views. Whether youre entertaining guests, enjoying your morning coffee, or relaxing after a long day, this backyard offers the perfect combination of tranquility and functionality. One of the standout features of this home is the fully paid solar system, helping dramatically reduce electricity costs year-round a huge benefit for California homeowners looking for energy-efficient living and long-term savings. Outdoor enthusiasts will appreciate the close proximity to local hiking and walking trails, while the nearby Diamond Bar Center offers community events, concerts in the park, weddings, and year-round entertainment just minutes away. Conveniently located near shopping, dining, parks, and easy freeway access, this home combines suburban comfort with everyday convenience. If youve been searching for a modern upgraded home in Diamond Bar with views, paid solar, privacy, excellent schools, hiking trails, and a prime cul-de-sac location, this is one you do not want to miss. Walnut Valley Unified School District Quail Summit Elementary Paid solar home Cul-de-sac home City light views Turnkey home Modern upgrades Private backyard Fruit trees Hiking trails nearby Energy-efficient home Move-in ready Diamond Bar real estate Quiet neighborhood Family-friendly neighborhood

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Listing Snapshot
Price 
$1,299,999
Days On Site 
61 Days
Bedrooms 
4
Inside Area (SqFt) 
2,380 sqft
Total Baths 
3
Full Baths 
3
Partial Baths 
N/A
Lot Size 
0.164 Acres
Year Built 
1978
MLS® Number 
TR26115009
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
yesterdayListing updated with changes from the MLS®
3 days agoStatus changed to Active
2 months agoListing first seen on site
General Features
Garage 
Yes
Garage Spaces 
2
Number Of Stories 
2
Parking Spaces 
2
Property Sub Type 
Single Family Residence
Sewer 
Public Sewer
Special Circumstances 
Standard
SqFt Total 
2380
Water Source 
Public
Interior Features
Cooling 
Central Air
Fireplace Features 
Family Room
Heating 
Forced Air
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Exterior Features
View 
City Lights
Waterview 
City Lights
Community Features
Community Features 
Curbs
Listed by Samuel Castorena of Samuel G. Castorena Jr (626) 253-5129



This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS®. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Copyright © 2026 San Diego MLS®.

Last checked 2026

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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