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48-Lot Luxury Residential Development Opportunity | The Country Estates, Diamond Bar An exceptionally rare development opportunity within The Country Estates, one of the most prestigious and well-known guard-gated luxury residential communities in the greater Los Angeles area. Located in the City of Diamond Bar, The Country is renowned for its 24-hour guarded entrances, privacy, security, expansive custom estates, beautiful hillside setting, and exclusive residential environment. This offering consists of 48 individually subdivided residential lots being offered together as one extraordinary development opportunity. Most importantly, this property represents the last remaining large-scale land opportunity within The Country Estates that can be developed as a single, cohesive luxury residential project—an opportunity of this scale and caliber is virtually impossible to replicate within this established community. The property provides a unique opportunity for a developer, builder, or investor to create an exclusive collection of custom luxury estates surrounded by some of Diamond Bar’s most prestigious residences. The Country is known for its substantial custom-built homes, large private lots, impressive architectural designs, and estate-style living, making it one of Southern California’s most distinctive luxury residential communities. The project is located within the highly regarded Walnut Valley Unified School District, with convenient access to major employment, shopping, dining, and entertainment destinations throughout Los Angeles and Orange Counties. The property also offers convenient access to the 57 and 60 Freeways, providing connectivity to Downtown Los Angeles, Orange County, and the greater Southern California region. With 48 separate residential lots, an irreplaceable location inside a renowned guard-gated community, and virtually no comparable large-scale development land remaining within The Country, this offering presents a truly exceptional opportunity for luxury residential development. A once-in-a-generation opportunity to develop the final large-scale residential land assemblage within The Country Estates.
Listing agent: KEN CHEN DRE #01834621 kenchenrealtor@gmail.com, Listing office: UNIVERSAL ELITE REALTY
MLS data updated 10/24/2026, 2:46:54 PM PT
Source: CRMLS, MLS #: WS26181667
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Compare recorded home prices, same-type ZIP sales and mortgage rates.
Jul 22, 2026
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This home · nearest recorded event
$39,800,000Original asking price · Jul 22, 2026ZIP 91765 · Jul 2026
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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.
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