Contemporary, sun-drenched, and perfectly positioned? - welcome to 431 S 20th Street. Situated on a premier corner in Rittenhouse Square, this striking townhome by Maguire Builders seamlessly blends sleek modern design with warm, custom finishes and flexible functionality. With 3-4 bedrooms, 3.5 baths, multiple living areas, and a 2-car garage, it checks every box for elevated city living. Design highlights include site-finished walnut-stained oak floors, walls of Pella windows, soaring ceilings, dual-zone HVAC, ?recessed lighting and custom cabinetry by Lutzwood. The gourmet kitchen is outfitted with a Sub-Zero refrigerator, Wolf 6-burner stove, oversized quartz island, and under-cabinet lighting? - flowing effortlessly into a dedicated dining area and cozy living space with a custom tile-and-wood fireplace surround. Just off the kitchen, a bright and inviting family room opens to a private deck?, ideal for al fresco dining or relaxing with a morning coffee. This space features a sleek floor-to-ceiling tile fireplace, custom wood shelving, and refined architectural details that add warmth and style. The primary suite is a true retreat, offering a spa-like bath, a custom walk-in closet, tray ceilings and modern fan and wrap around windows . Upstairs, two additional bedrooms, a beautifully finished hall bath, a wet bar, and access to the rooftop deck with panoramic city views create the perfect indoor/outdoor entertaining space. The fully finished basement features high ceilings, a full bath, and flexible living space?, ideal for a fourth bedroom, nanny suite, home gym, or media room. Located in the Greenfield Catchment,? just blocks from Rittenhouse Square and some of Philadelphia's best dining, shopping, and cultural destinations? and steps away from the Lombard Swim Club. Approximately 3.5 years remain on the tax abatement.? You won't want to miss out on this gem in Rittenhouse Square.