901 Terrace Mountain Dr A Modern Masterpiece in Westlake Hills Perched atop one of Westlake Hills' highest points, minutes from downtown, the Waterfall House embodies the pinnacle of modern luxury. This fully gated estate, designed by the acclaimed Dick Clark Architects, offers an immersive living experience w/sweeping skyline views & a seamless connection between nature, design, and technology. Set on over an acre of landscaped grounds & shaded by heritage oaks, the residence blends clean architectural lines w/soft organic elements. Steel-and-glass Fleetwood doors open the home to more than 1, 000 sqft of covered terraces, where downtown Austin becomes part of the visual canvas. Built in 2013 by John Luce with additions made in 2019 The main living features raised ceilings, plaster walls, fireplace, custom Bocci chandelier, Hemlock-paneled ceilings, & Italian porcelain tile floors (that continue outdoors) to heighten the sense of fluidity between interior & exterior. At the heart of the home lies a state-of-the-art kitchen outfitted w/Leicht cabinetry, Miele appliances, wine fridges, galaxy-quartz counters, & Blanco sinks. The home offers a total of six bedrooms (all ensuite), including 2 guest suites on the main level one w/Murphy bed, kitchenette, & private entry, ideal for an office, long-term visitors or home gym. Upstairs, a media room and game room anchor the four additional bedrooms. The primary suite is a private retreat made for slowing down, complete with a Victoria + Albert soaking tub, Kohler rain shower, custom closets, & direct access to the pool terrace. Floor-to-ceiling windows offer cinematic downtown views, while motorized blackout shades ensure restful nights. Outdoors swim beneath the stars, gather on the expansive terrace, or simply listen to the breeze drift through the oaks. Cutting-edge systems ensure comfort & peace of mind, including a full perimeter security system and a 60W Generac generator powered by a 1, 000-gallon propane tank.