Searching for a luxury home in Lake Mathews on acreage with panoramic lake and mountain views? This 4,743 sqft custom estate on 2.85 acres at 20390 Christo Ct captures sweeping 180 degree views of Lake Mathews, an infinity edge pool, and expansive indoor outdoor living designed for elevated Southern California living. Set above the surrounding landscape, this fully custom designed estate blends architecture, craftsmanship, and breathtaking scenery. The property showcases 180 degree panoramic views over Lake Mathews, stretching toward Orange County in one direction and the San Bernardino Mountains and Big Bear in the other. Sunrises, sunsets, and evening lights create a dynamic and ever changing backdrop. The outdoor space is designed to highlight the view, featuring an infinity edge pool that visually connects to the horizon, along with custom water features, statues, and an outdoor bathroom and shower for poolside use. Multiple seating areas allow for both large scale entertaining and quiet moments overlooking the lake. A private front courtyard with a covered sitting area and fireplace offers an inviting space for relaxing or entertaining, adding a second outdoor living environment separate from the pool area. Inside, vaulted ceilings and natural stone flooring create a sense of scale and warmth throughout. Large windows and thoughtful orientation bring natural light into the living spaces while framing the surrounding views. The oversized kitchen includes a large pantry with butler prep area and opens to a formal dining space with a custom painted ceiling, ideal for hosting and everyday living. The primary suite features a fireplace, dual exterior access, a spa style bathroom with soaking tub and walk in shower, and an expansive walk in closet with a connected flex room for office, gym, or nursery. With 4,743 sqft, the layout offers flexibility to create additional bedrooms, guest suites, or multi generational living options. Additional features include a detached four car garage, oversized climate controlled attached garage, two HVAC systems updated approximately 1.5 years ago, and two water heaters. Luxury home in Lake Mathews on acreage opportunities with this combination of views, land, privacy, and scale are rare. Schedule a private tour to experience it in person.