Welcome to this stunning estate located in the prestigious South Hills neighborhood of West Covina — the most desirable area in the city. Nestled on a rare 0.87-acre flat lot, this beautiful home offers 3,605 sq.ft. of interior living space, plus a permitted 640 sq.ft. guest house (ADU) built in 2008. The main house features 4 spacious bedrooms and 3 bathrooms, including a downstairs suite ideal for guests or multi-generational living. The heart of the home is an open-concept kitchen and family room, complete with a dry bar — perfect for entertaining. Upstairs, you’ll find 3 bedrooms, including the luxurious master suite, and a large enclosed entertainment room with a wet bar. The detached ADU offers privacy and convenience, featuring 1 bedroom, 1 full bathroom, a fully equipped kitchen, and washer/dryer hookups — ideal for extended family, guests, or rental income. Enjoy California outdoor living in the spacious backyard oasis with a sparkling pool and spa, fruit trees, and ample flat land with potential for building 2 additional ADU units (buyer to verify with city).This is a rare opportunity to own a grand estate in a prime location with exceptional expansion potential!