Residence 9D epitomizes the timeless elegance and architectural distinction of the legendary Apthorp. A gracious entrance foyer opens into an expansive living room flowing seamlessly into a formal dining room bathed in warm southern light. Both rooms showcase an amazing fireplaces, preserving the building's extraordinary prewar character with thoughtfully executed modern upgrades. The residence has undergone a comprehensive, design-driven enhancement. The newly renovated, windowed kitchen features custom cabinetry, refined stone counters and backsplashes, a bespoke banquette for casual dining, and premium appliances by Gaggenau and Miele. Select appliance upgrades further elevate functionality and performance. Lighting throughout the home has been meticulously curated, including custom and antique Murano and Venini chandeliers - with a striking custom Murano fixture anchoring the dining room. High-End architecturally scones through out, complemented by additional designer pendant fixtures. The dining room ceiling has been entirely rebuilt, delivering a flawless architectural finish. Custom millwork enhances both form and function, including built-in cabinetry in the back hall and dressing room, as well as extensively upgraded closet systems throughout the residence. Designer drapery and electronically operated shades complete the windows, offering privacy and elegance. Spa-like baths are enhanced with upgraded glass shower enclosures, there is radiant heated flooring in the primary bath, in-residence Miele washer and dryer - ensuring modern comfort behind the home's classic architectural facade. This rare offering delivers 4 bedrooms with 4.5 bathrooms authentic Apthorp grandeur paired with contemporary luxury in one of Manhattan's most iconic landmark buildings.