5017 Castellano Court Luxury truly lives in the details of this exceptional custom home, tucked at the back of an exclusive gated community in Flower Mound and zoned to highly sought-after Argyle ISD. Situated on a one-acre lot, this estate was designed for everyday comfort and effortless entertaining. The open-concept kitchen and living area showcase soaring beamed ceilings and top-tier appliances including a Sub-Zero refrigerator, Wolf range, double ovens, and refrigerated drawers. A fully equipped prep kitchen with a second dishwasher, wine and a full size beverage and wine fridge, ice maker, and walk-in pantry keeps hosting seamless and organized. The primary suite feels like a private retreat with two walk-in closets, a personal gym with Tonal system, sauna, coffee bar with mini fridge, spa-inspired shower, and even an outdoor shower! Most of the living space is thoughtfully located on the first floor, including four spacious ensuite bedrooms with walk-in closets, a private office with its own bath that could serve as a sixth bedroom, and a den with built-in desks. Upstairs offers flexibility with a game room (complete with reading nook and murphy bed), kitchenette, full bath, and guest suite ideal for entertaining or multigenerational living. Outdoor spaces were equally prioritized with a front courtyard featuring a fireplace, dining space and water feature, then the backyard oasis complete with pool, spa, firepit, outdoor fireplace, and full outdoor kitchen with built-in grill and fridge. Additional highlights include a 4-car garage with HVAC, dog wash station and two EV chargers, whole-home Halo water filtration, smart home features, integrated SONOS system with TVs included, level 4 tile roof, two whole-home generators, and a pool with in-floor cleaning system and hard cover. Experience elevated living at its finest. Visit www.5017Castellano.com for photos, floor plan, and 3D tour.