1423 Copper Mountain
Diamond Bar, CA, 91765
$1,299,999
MLS: TR26115009
Beds
4
Baths
3
Sq Ft
2,380
Lot
0.16 ac
Year Built
1978
MLS #
TR26115009
Days on Market
0
Listed
Jun 12, 2026
Description
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
Location
Diamond Bar, Los Angeles County, CA 91765
Open on Google Maps ↗Listed by: Samuel Castorena · Samuel G. Castorena Jr
Payment estimate
$9,552
/ month (est.)
Principal, interest, taxes, and insurance + PMI. Down payment: $130,000 · Loan: $1,169,999
Average 30-yr fixed rate 6.52% as of Jun 11, 2026 (Freddie Mac PMMS). Adjust to your quote.
- Principal & Interest
- $7,411
- Property tax (1.25%)
- $1,354
- Homeowners insurance
- $300
- Mortgage insurance
- $487
Login required. The full tool supports FHA / VA / USDA, PMI by credit tier, lender fees, and total cash to close — with your inputs here carried over.
Today's Rates
As of Jun 11, 2026
- 30-year fixed
- 6.52%
- 15-year fixed
- 5.84%
Source: Freddie Mac Primary Mortgage Market Survey (PMMS). Updated weekly.
About the area · Mike Watson
About the Antelope Valley
The Antelope Valley spans Lancaster, Palmdale, Quartz Hill, Rosamond, Lake Los Angeles, California City, Edwards AFB, and the Plant 42 aerospace corridor. Mike Watson is a lifelong AV resident and the #1 producing individual Realtor in the region by transaction count. Every active listing on this site is paired with a free market analysis tailored to the specific street, honest financing guidance (FHA, VA, USDA, CalHFA, conventional, and assumable loans where the financing supports it), and side-by-side comparisons against the rest of the active inventory in your target ZIP.
Financing Options
FHA Financing — 3.5% Down＋
First-time and repeat buyers can purchase this Diamond Bar home with as little as 3.5% down using an FHA loan — roughly $45,500 down. FHA loans feature flexible credit guidelines and government-backed rates, making homeownership accessible for buyers who haven't saved a large down payment. Seller concessions up to 6% of the purchase price are also allowed.
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Local Market Stats
See Diamond Bar, CA 91765 market trends →
Median sold price, days on market, active inventory, price brackets, and 12-month trends — pulled live from the MLS.
★#1 Producing Individual Realtor — Antelope Valley
Only large teams outsell Mike Watson · Keller Williams Realty
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