Positioned high above Rittenhouse Square on the 18th floor, Residence 18A at 220 W Rittenhouse is an exceptionally rare double-corner residence offering breathtaking, unobstructed views of both the Square and Center City skyline from nearly every room. One of only three residences on the entire floor, this expansive home delivers a level of privacy, scale, and prestige seldom available in Philadelphia condominium living. The open-concept layout features a gracious living room, formal dining area, and a custom eat-in kitchen complete with built-in banquette seating, all framed by oversized windows capturing dramatic eastern and northern exposures. A private balcony directly overlooking the Square provides a truly iconic outdoor setting. The luxurious primary suite offers extraordinary closet space and a stunning marble bath with glass-enclosed shower, while the second bedroom and full bath provide ideal flexibility for guests, office space, or additional den. Additional highlights include a dedicated in-unit laundry room, a private storage locker, and access to parking at The Rittenhouse Hotel with EV charging spaces available. Located within the coveted Greenfield School catchment and one of Philadelphia's most prestigious full-service buildings, residents enjoy 24/7 doorman service and condo fees that include all utilities. An exceptional opportunity to own a true trophy residence in the heart of Rittenhouse Square.