Rare Single Level-Living Estate on an exceptional 19,000+ Square Foot Usable Lot in the prestigious South Hills neighborhood of West Covina, within the top-rated Covina-Valley Unified School District (South Hills High). This Beautifully Maintained 4 Bedroom, 3 Bathroom Residence offers approximately 2,698 Square Feet of Light-Filled Living Space, with Soaring Ceiling, Wide-Plank Engineered Wood Floors throughout, well built for both everyday social gatherings, and elevated entertaining. The Open-Concept floor plan flows effortlessly from the Great Room to the Family Room and out to the Backyard, anchored by Two Fireplaces, a Wet Bar, and a Generous Breakfast area. The Single-Level layout offers easy, accessible circulation throughout, ideal for multi-generational living and large gatherings. Step outside to a True Private Retreat: Stamped Concrete and Flagstone Walkways, multiple Seating Zones, a Built-In BBQ, and a Stunning Rock Waterfall Framing the Pool and Spa with Spillway Feature. Beyond the Pool, the Spacious Undeveloped Rear Yard - Framed by Mature Palm Trees and Scenic Hillside Views - offers genuine ADU potential, ideal for extended family or rental income (buyer to verify). Additional Features include Picturesque Hillside Views from Multiple Rooms, Professionally Landscaped front Grounds with Strong Curb Appeal, an Expansive Driveway, Finished 3-car Garage, and a Gated Oversized RV Parking Pad (approximately 13' x 65'). The home has been Thoughtfully Maintained with Copper Plumbing, a Tank-less Water Heater, dedicated Laundry Room, and an approximately 11-year-old tile Roof.