Sea-Dar Construction transformed this exceptional double-wide Upper East Side townhouse into a cohesive and inviting primary residence for a young family. Once a designer showhouse with a mix of competing styles, the home was reimagined as a sophisticated yet comfortable environment, with spaces for gathering, entertaining, and play thoughtfully connected throughout. The interiors balance a light, refined material palette with dramatic architectural elements, including a custom five-story chandelier suspended within the home’s elegant central staircase. The residence also features an impressive collection of amenities, from a rooftop swimming pool and gym to a lower-level basketball court, golf simulator, and custom wine room.