Nestled on a serene street in highly coveted Lost Creek, 6404 Whitemarsh Valley Walk offers the perfect blend of Hill Country charm and modern updates. Situated high atop a lush .37 acre lot with lovingly curated native Central Texas landscaping, this light-filled home features soaring ceilings and an open-concept layout designed for comfortable living and effortless entertaining. The main level showcases a beautifully updated kitchen with professional-grade appliances, quartz countertops, custom cabinetry, and a show-stopping island with seating on both sides. The sunny breakfast area opens to a private patio, creating a tranquil retreat just steps from your morning coffee. A spacious family room with 20-foot ceilings and expansive windows provides breathtaking views of the Hill Country. A bedroom with adjacent full bath is also located on the main level—ideal for guests or multigenerational living. Upstairs, a versatile loft landing makes an ideal office, gym, or cozy lounge. The ultra-luxe primary suite opens to a large private deck with sweeping canyon views and includes a spa-like bath and a very generous walk-in closet. Three additional large bedrooms, a shared bath with separate vanities, and a sizable laundry room complete the second floor. This energy-efficient home is equipped with an owned solar panel system, keeping average electric bills very low (12-mo average is ~$130/mo). Enjoy the peace and community of Lost Creek while being minutes from the top-rated Eanes ISD schools, less than 8 miles to Downtown Austin, and surrounded by parks, trails, and golf. A rare gem in West Austin.