AUCTION: Bidding ends May 21. Previously listed at $4.49M. Current high bid $2.7M. No Reserve. Showings daily by appointment – Discover luxury redefined at Black Onyx Lake Estate, a newly built waterfront masterpiece by Grubbs Construction, located in the prestigious, guard-gated enclave of Applehead Island on Lake LBJ. Designed for both grand entertaining and relaxed sophistication, this custom home features direct lake access with a private boat slip and dedicated jet ski slip. Enjoy the negative-edge pool and spa, a backyard putting green, and expansive patios ideal for al fresco gatherings with outdoor kitchen. Inside, the home offers a state-of-the-art theater, spacious game room, private study, and an open-concept living area anchored by a gourmet kitchen with Thermador appliances. Soaring 18-ft ceilings, walls of glass, and an elevator connecting all three levels provide a seamless blend of luxury and convenience. Nearly every room is infused with 360-degree lake views. Community amenities include tennis courts and a resident-only clubhouse. Purchase includes eligibility to activate a private golf membership at Horseshoe Bay Resort. This is an extraordinary opportunity to own a premier lakefront estate with no reserve!