Residence 23B is a 2,870 sq. ft. North and West corner Four Bedroom, Four Bath residence. Beautiful oversized double-hung windows, 10 foot ceilings, and 4 inch custom stained white oak floors create prewar proportions with a modern sensibility. The walnut-paneled entry door opens onto a foyer leading to a Great Room with North and West corner windows capturing views of the iconic New York City skyline and Hudson River. The kitchen features Calacatta Gold marble countertops, backsplash, and an island with seating for five. The kitchen features custom cabinetry and hardware, Sub-Zero refrigerator/freezer and wine refrigerator, Miele dishwasher and speed oven. Wolf gas range and oven are fully vented by a recessed stainless steel hood and feature a Dornbracht pot-filler faucet. The Master Bedroom suite features four closets, two of which are walk-in closets, a luxuriously finished five-fixture Master Bath appointed with polished Calacatta Gold marble tiled walls, high honed herringbone pattern marble floors with Lagos Blue limestone accent, Waterworks fittings and tub, steam shower, custom designed vanity with under-mount sinks and radiant heated floors. The Second and Third Bedrooms have en-suite baths with a sophisticated combination of materials including a high-honed Vanilla Cream marble herringbone tiled floor and vanity countertop with Waterworks fixtures paired with white ceramic crackle tiled wall detailing. The elegant Fourth Full Guest Bath/Powder Room features Supai stone slab wainscot, vanity countertop and floors with a Lagos Blue limestone border framing the custom vanity crafted from natural walnut with antiqued brass finish detailing and Waterworks fittings. Full size LG washer and vented dryer. No detail was overlooked in the design of this residence with a multi-zone four pipe fan coil heating/cooling system that carefully controls the interior climate throughout.