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Property view

1423 Copper Mountain, 
Diamond Bar, CA 91765

$1,299,999

4

Beds

3

Baths

2,380

Sq Ft

Single Family

Coming Soon

Listed by

Samuel Castorena

Samuel G. Castorena Jr

626-253-5129

Last updated:

May 31, 2026, 10:33 AM

MLS#

TR26115009

Source:

CRMLS

About This Home

1423 Copper Mountain

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 today’s buyers. This turnkey property is currently being refreshed with new interior and exterior paint, complementing the home’s updated kitchen and modern contemporary feel throughout. From the moment you walk in, you’ll 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 you’re 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 you’ve 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

Home Facts

Single Family

3 Baths

4 Bedrooms

Built in 1978

Price Summary

1,299,999

$546 per Sq. Ft.

MLS #:

TR26115009

Last Updated:

May 31, 2026, 10:33 AM

Added:

4 day(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

4

Bathrooms

Total Bathrooms:

3

Full Bathrooms:

3

Interior

Living Area:

2,380 Sq. Ft.

Structure

Structure

Building Area:

2,380 Sq. Ft.

Year Built:

1978

Lot

Lot Size (Sq. Ft):

7,143

Finances & Disclosures

Finances

Price:

$1,299,999

Price per Sq. Ft:

$546 per Sq. Ft.

Source:CRMLS
The information being provided by California Regional MLS (Southern California) is for the consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing. Any information relating to real estate for sale referenced on this web site comes from the Internet Data Exchange (IDX) program of the California Regional MLS (Southern California). Coldwell Banker Hallmark Realty is not a Multiple Listing Service (MLS), nor does it offer MLS access. This website is a service of Coldwell Banker Hallmark Realty, a broker participant of California Regional MLS (Southern California). This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. The accuracy of all information, regardless of source, including but not limited to open house information, square footages and lot sizes, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. The data contained herein is copyrighted by California Regional MLS (Southern California) and is protected by all applicable copyright laws. Any unauthorized dissemination of this information is in violation of copyright laws and is strictly prohibited. Copyright 2021 California Regional MLS (Southern California). All rights reserved.
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1423 Copper Mountain
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Sat, Jun 13
11:00 AM - 02:00 PM

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Contact an Agent

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Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.