Selling primarily for land value, this exceptional and FULLY USABLE 1.83-acre lot sits elevated within the prestigious 24-hour guard-gated community of The Country Estates, surrounded by multi-million dollar estates and offering sweeping panoramic valley views. The property currently includes a MAIN HOUSE of approximately 3,720 sq ft (physical measurement), along with an ADDITIONAL SEPARATE ADU/ pool house of approximately 1,008 sq ft (physical measurement), and a detached four-car garage of approximately 1,035 sq ft (physical measurement). The property is being sold strictly in AS-IS condition. The seller will not perform any repairs. Cash buyers only. A prior custom estate plan—designed by a renowned architect—was approved by the city in September 2019 (now expired) for an approximately 15,000 sq ft luxury residence. The design included nine suites, guest quarters, a grand 1,500 sq ft great room, gym, courtyard, pool, tennis court, and a subterranean garage accommodating 7+ vehicles. All information provided is deemed reliable but not guaranteed. Buyers are responsible for independently verifying all measurements, details, and requirements with the City of Diamond Bar and the HOA, including any matters related to plan approval, renewal, or modifications. Located within the highly acclaimed Walnut Valley Unified School District. A rare opportunity to create and build your dream estate in one of the area’s most sought-after communities.
Clubhouse, Pickleball, Pool, Guard, Security, Tennis Court(s)
City Lights, Canyon, Hills, Neighborhood, Panoramic, Trees/Woods, Valley
In Ground, Private, Association
Semiwati Tan, Adequate Real Estate Service.
Based on information from California Regional Multiple Listing Service, Inc. as of April 23rd, 2026 at 2:30am PDT. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent.