516 S 21ST STREET Stunning new construction townhome, thoughtfully designed with high-quality materials, a generous floor plan, dedicated parking, and sweeping skyline views from oversized windows and a private rooftop terrace. This thoughtfully laid-out floorplan offers flexibility and convenience, featuring four bedrooms, four full bathrooms, and a half bathroom across four levels of living. The first-floor open-concept design seamlessly integrates the living room, dining area, and kitchen. The gourmet kitchen features quartz counters, Thermador appliances, custom cabinetry, and a built-in pantry. Also on this level is a conveniently located powder room. Large glass sliders from the kitchen lead out to a private patio & access to the secure parking space. This property's second level comprises two guest bedrooms with spacious closets, a laundry room, a hall bathroom with a tub/shower combo, and a single vanity sink with storage.The primary bedroom suite spans the entire 3rd level of the property, highlighted by a massive walk-in closet and spa-like bathroom with dual custom vanities, a stand-alone tub, a seamless glass shower, heated tile floors, and a water closet with a Toto Neorest. The fourth level is open and spacious with a home office/guest room, hall bathroom, and an open media room/den with a wet bar, which includes a built-in beverage cooler. Above is the private roof deck with panoramic views of the Philadelphia skyline. Completing this home is a fully finished lower level with a guest bedroom, hall bathroom, and rec room -- perfect for a den/home gym/playroom. 10-Year Tax Abatement (Phased) approved & included! Located in Fitler Square and adjacent to Rittenhouse & Graduate Hospital neighborhoods, this property is located in the Greenfield school catchment and surrounded by fantastic eateries, coffee shops, and city conveniences while being only a short commute to Penn, CHOP, 30th Street Station, and the businesses in Rittenhouse Square.