THE HOME: Home is here! Enjoy tremendous light all day and extraordinary views from this pin-drop quiet, 4-bedroom 3-bath home on the 18th floor in an landmarked district of the Upper West Side. The ideal layout starts with a private primary suite with windows facing south and east, including a giant walk-in closet. The en-suite full bath with beautiful tiles throughout features double sinks. Enjoy the comfort of two home offices, one of which can readily be used as a den. The sun-drenched living room includes a recessed code-compliant fireplace and easily fits a baby grand piano. The U-shaped, windowed kitchen is fully equipped with a Sub-Zero refrigerator, recessed Miele convection and microwave ovens and Valcucine cabinets finished with Calacatta Gold marble countertops, plus a backsplash of hand-crafted Italian ceramic tiles. The rooms flow smoothly from kitchen to dining room, to private outdoor terrace with sliding glass doors offering spectacular views north and east of the Upper West Side. Two of the north wing's large bedrooms face west with Hudson River views, one of those also has a northern view of the river and an en-suite bath. The fourth bedroom has two exposures as well, facing north with a view of the river and east. Bonus items include an abundance of professionally designed closets throughout, a separate storage room in the foyer and a pantry with second refrigerator. The apartment also comes with a large storage room in the basement. Additionally, the Board will permit the installation of a washer/dryer in the pantry. THE COOPERATIVE: 263 West End Avenue was originally known as Hudson Towers and later renamed Riverside Towers. In 1945, plans were filed by architect Arthur Weisler for the conversion of the building to cooperative apartments for 124 families to be known as the Riverside Towers