Meticulously designed by renowned architect, Peter Pennoyer, this spectacular full-floor condominium residence boasts grand entertaining spaces and luxurious private quarters. Spanning approximately 3,966 square feet, this sun-flooded home has five bedrooms (or four and a library) and five new bathrooms. The highest level of finishes were used throughout. Features include chevron pattern quarter sawned oak floors, multi-zone central air conditioning on Nest thermostats, a humidification system, LeFroy Brooks fixtures, custom-designed Lowe of Maine olive knuckle hinges and doorknobs, and radiant heat in all the bathroom floors. An elegant entrance gallery with a barrel-vaulted ceiling and St. Laurent marble floors flows into a magnificent 26'8" long living room with three oversized windows facing south overlooking the beautiful tree-lined street. Through pocket doors is an elegant library (or fifth bedroom) which also faces south and has two closets. There is a hallway bathroom with a concealed walk-in shower and a hallway coat closet. Also adjacent to the living room is an exquisite dining room providing the perfect space for large-scale gatherings. A beautiful bar with an antique mirror backsplash and a Subzero wine refrigerator connects the gallery to the kitchen. The bespoke Smallbone eat-in kitchen has a center island with ample seating as well as space for a breakfast table. There is custom cabinetry with walnut interiors, White quartz countertops, Calacatta Caldia marble backsplashes, and coffered ceilings. It is equipped with state-of-the-art appliances including two Subzero refrigerators both with two freezer drawers, a Wolf six-burner range with a vented hood, a Wolf oven, a Wolf convection oven, a Wolf microwave, a Wolf warming drawer, two Miele dishwashers, and a sink. Off the kitchen is a laundry room with a LG vented washer/dryer and a sink as well as a large walk-in pantry closet. As for the private quarters, the gorgeous master suite affords stunning views overlooking the neighboring gardens and four closets, two of which are walk-ins. There is a lavish en-suite bathroom finished in Sugar White stone marble slabs; it has two sinks, a Tea-for-two marble-clad bathtub, a walk-in steam shower with a rain head shower, and a separate water closet. There are three additional bedroom suites and three bathrooms all finished in White Carrara marble and Pompeion Grey honed marble mosaic tiles - two with bathtubs and one with a shower. A storage bin transfers with the sale. 151 East 78th Street is a boutique white-glove condominium that was built in 2016. Residents enjoy the highest level of service including a full-time doorman, a porter, and a live-in resident manager. Amenities include a gym, yoga studio, library, garden, and a bicycle room. In addition, the building has an emergency generator.