Spectacular custom built estate located in the most prestigious & secured 24-hour guard gated community of Diamond Bar - "The Country". A tropical, modern architecture, gorgeously designed/constructed by the original owner, a private builder, who developed over 40 houses in “The County”. Expansive 0.9 acre level usable lot. The home boasts 6,801 sq ft of luxurious living space, including a separate guest house wrapped around a tropical oasis in the backyard. Main residence boasts five bedroom suites (4 upstairs/1 down), 4.5 bathrooms and an office. Double-door entry opens into a magnificent high-ceiling foyer w/ sweeping staircase & stunning chandeliers. On the left is a huge oversized family room w/ coffered ceiling, fireplace, full bar for entertaining, and an additional main floor guest suite. On the right is a rich wood-paneled office/library; living room w/ two-story ceilings, open to the formal dining room, showcases one of three fireplaces and a french door to the tranquil garden. Further in is a gourmet kitchen that enjoys the incredible resort backyard views, finished w/ updated white cabinetry, high quality quartz counters & backsplashes, top of the line appliances, center island, and a walking pantry. Upstairs sits a stunning dual entry primary suite w/ a fireplace and relaxing sitting area plus a to-die-for sumptuous bath w/ separate jacuzzi tub & shower, immense dual vanity and two separate walk-in closets. A spacious double bedroom suite w/ dual vanity bath and another en-suite bedroom finish the upper level. Enjoy laid-back California Luxury outdoor living, including your very own tropical lagoon style rock pool w/ a water slide along w/ an amazing waterfall, grotto & dazzling SPA sitting above the pool, huge covered patio w/ built-in BBQ, gazebo, and exotic plants. A separate two story guest house nestled in the backyard w/ living room, kitchen, one bedroom (583 SF) and two bathrooms. Two separate large garages (3 car or RV) + (5 car). An additional 1950 sq ft, 2-story conversion from the current RV/3 car garage (which could become an addition large bedroom/movie theater/office/game room) can be built by the new owner subject to negotiation-future can be approx. 8800 sq. ft. (now 6801 sf incl. current guest house). All of this plus a top rated schools, close proximity to freeways, shopping & restaurants makes this such a gorgeous & entertaining home that you must see!