1423 Copper Mountain, Diamond Bar, CA 91765

Single-Family · For sale · $1,299,999 · MLS# TR26115009

Single-Family for sale in Southern California — $1,299,999. 4 beds · 3 baths · 2,380 sqft. 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-rat…

1423 Copper Mountain
Pending

$1,299,999

1423 Copper Mountain, Diamond Bar, CA 91765

4beds
3baths
2,380sqft
Single-FamilyProperty type
1978Year built
7,144 sqft lotLot size
2,380 sqftLiving area
$546/sqftPrice / sqft
HOA
2 spacesGarage

Facts & features

Interior

Bedrooms & bathrooms

  • Bedrooms: 4
  • Bathrooms: 3
  • Full bathrooms: 3

Heating

  • Heating: Central

Cooling

  • Cooling: Central Air

Appliances

  • Laundry: Inside

Interior area

  • Living area: 2,380 sqft

Property

Parking

  • Total parking spaces: 2
  • Garage spaces: 2

Lot

  • Lot size: 7,144 sqft

Features

  • Pool features: None
  • View: City Lights

Construction

Type & style

  • Home type: Single-Family
  • Property subtype: Single Family Residence

Condition

  • Year built: 1978

Community & HOA

Community

  • Has HOA: No

Financial & listing details

  • Days on market: 52 days
  • Price / sqft: $546
  • Status: Pending
  • MLS#: TR26115009

Location

  • City: Diamond Bar
  • ZIP: 91765

About this home

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 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

Listing updated: July 14, 2026 at 2:18 PM

Listed by: Samuel Castorena, Samuel G. Castorena Jr

Source: CRMLS, MLS#: TR26115009, Originating MLS: California Regional MLS

Location

Explore parks, streets, and what's around this home.

Diamond Bar

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Facts & features

Interior

Bedrooms & bathrooms

  • Bedrooms: 4
  • Bathrooms: 3
  • Full bathrooms: 3

Heating

  • Heating: Central

Cooling

  • Cooling: Central Air

Appliances

  • Laundry: Inside

Interior area

  • Living area: 2,380 sqft

Property

Parking

  • Total parking spaces: 2
  • Garage spaces: 2

Lot

  • Lot size: 7,144 sqft

Features

  • Pool features: None
  • View: City Lights

Construction

Type & style

  • Home type: Single-Family
  • Property subtype: Single Family Residence

Condition

  • Year built: 1978

Community & HOA

Community

  • Has HOA: No

Financial & listing details

  • Days on market: 52 days
  • Price / sqft: $546
  • Status: Pending
  • MLS#: TR26115009

Location

  • City: Diamond Bar
  • ZIP: 91765

Price history

DateEventPrice
6/12/2026Source: CRMLS, #TR26115009Listed for sale$1,299,999$546/sqft0.0%
6/12/2026Source: CRMLS, #TR26115009Pending sale$1,299,999$546/sqft
California Regional Multiple Listing Service (CRMLS)

The multiple listing data appearing on this website, or contained in reports produced therefrom, is owned and copyrighted by California Regional Multiple Listing Service, Inc. ("CRMLS") and is protected by all applicable copyright laws. Information provided is for viewer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties the viewer may be interested in purchasing. All listing data, including but not limited to square footage and lot size is believed to be accurate, but the listing Agent, listing Broker and CRMLS and its affiliates do not warrant or guarantee such accuracy. The viewer should independently verify the listed data prior to making any decisions based on such information by personal inspection and/or contacting a real estate professional.

Based on information from California Regional Multiple Listing Service, Inc. as of 2026-07-14 14:18:05 PDT and /or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by broker or MLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information