***Unbeatable Mountain and City views. Original homeowner and premium corner lot ***NO HOA!!! Welcome to the Three Oaks community located in the City of Walnut, a highly regarded and desirable neighborhood. The community offers 24-hour patrol safety and hiking trails. This luxurious mansion boasts panoramic mountain and city views and was constructed in 2012. It features a total of 8 bedrooms (all en-suite), 9 bathrooms, and occupies a 24,194 square foot lot. The entire house is built around a CENTRAL COURTYARD, also known as a Chinese quadrangle courtyard (Si He Yuan). This property is ready for immediate move-in! Upon entering, you will be drawn in by its spaciousness, perfect layout, HIGH-CEILING, DOUBLE STAIRS design, and unique CENTRAL COURTYARD design. The living room, family room, and dining room all have direct access to the CENTRAL COURTYARD. Sitting in the CENTRAL COURTYARD and gazing up at the stars, you can imagine an encounter with a UFO. The first floor has three-bedroom suites, ideal for elderly people or guests. To the right upon entering is a separate living room. The open-floor design of the kitchen, family room, and breakfast room show spaciousness and convenience. The separate walk-in pantry can function as a secondary kitchen. Whether cooking in the kitchen, enjoying breakfast, or entertaining in the family room, the northern mountain views are always in sight. The separate formal dining room, connected to the side yard, is ideal for dinner gatherings and prayer sessions with friends. The second floor features 5 bedrooms and a laundry room. The northern master suite comes with a walk-in closet, a luxurious bathroom, and a spacious balcony. Every evening, sitting on the balcony with a cup of tea, enjoying the city lights, it feels as if time stands still, and everything becomes quiet and relaxing, marking the beginning of a beautiful dream! The backyard, located on a corner lot and equipped with a separate restroom, is flat, and spacious. It offers a panoramic 180-degree view of the magnificent mountains. Currently used as a 21-hole golf putting green, it has endless potential for future development, such as adding a swimming pool, building an ADU, etc. Let your imagination run wild. In the evening, your backyard offers a breathtaking 180-degree view of the city lights. Every Independence Day, you'll enjoy fireworks displays from multiple cities, a truly enjoyable experience. Do not miss out on your dream home.