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Welcome to this beautiful and spacious home located at 830 Coldstream Ct, Diamond Bar, CA 91765. This wonderful property features 4 bedrooms plus a separate office that can easily be used as a 5th bedroom, and 3 bathrooms, offering approximately 2,522 sq. ft. of living space on a generous 8,113 sq. ft. lot. The home features one bedroom and a remodeled bathroom downstairs, ideal for guests, in-laws, or multi-generational living. The spacious floor plan includes a large living room, formal dining area, and inviting family room, providing plenty of space for comfortable everyday living and entertaining. The kitchen offers abundant cabinet space and comes equipped with a new GE stove, new Whirlpool dishwasher, and Samsung refrigerator. A Samsung washer and dryer and whole-house water filtration system are also included in the sale. The rear windows have been upgraded with high-strength metal mesh security screens for added security and durability. Additional features include upgraded dual-pane windows and an attached three-car garage with a new modern garage door and two high-quality remote controls, providing ample parking, storage, convenience, and functionality. Step outside to a beautiful and private backyard with a lovely view, creating the perfect setting for relaxing, entertaining, and enjoying outdoor gatherings with family and friends. Conveniently located near Pantera Park, Pantera Elementary School, Diamond Ranch High School, shopping centers, restaurants, and other local amenities. Don’t miss this wonderful opportunity to own a spacious, comfortable, and well-maintained home in the desirable Diamond Bar community!
Listing agent: Karen Wu DRE #01515481 karen88realtor@gmail.com, Listing office: Wetrust Realty
MLS data updated 10/16/2026, 10:19:17 PM PT
Source: CRMLS, MLS #: AR26211794
Belmont insights
Compare recorded home prices, same-type ZIP sales and mortgage rates.
Sep 29, 2026
Prices use the left axis; mortgage rates use the right. Hover, tap, or focus the chart and use the arrow keys. Red SOLD badges mark recorded sales.
This home · nearest recorded event
$1,250,000Original asking price · Sep 29, 2026ZIP 91765 · Sep 2026
No monthly averageAt least 3 eligible sales in this month are required.30-year fixed mortgage benchmark
No weekly rateNo published rate within 7 days of this date.No recorded sales in this range. Select All available for older records; missing records do not mean the home never sold.
ZIP averages use publicly displayable closed sales from our licensed MLS feed, matched to the same ZIP and exact property type. Months with fewer than 3 sales are omitted; the current month is incomplete. Lines connect available monthly observations across gaps and do not represent measured prices in missing months. These averages are not adjusted for size, condition, or location within the ZIP, and are not an appraisal. Feed coverage may not include every sale. All available shows the available home and ZIP history, with mortgage rates over the same dates.
Mortgage benchmark: Freddie Mac Primary Mortgage Market Survey®. © Freddie Mac. Weekly national 30-year fixed rates, not APRs or a loan quote. Actual terms vary. Methodology changed in November 2022. The chart does not establish that interest-rate changes caused a home’s price changes.
Lines connect recorded asking and sale prices. They are visual guides, not estimates of the home’s value between those dates.
No earlier records were returned by our current sources. This does not mean the home has never sold.
MLS records may be incomplete. Earlier asking prices are not sale prices.