Discover the perfect blend of historic character and modern luxury in this fully renovated penthouse residence, set within an elegant 1800s brownstone in the heart of Washington Square West. A grand double-door entry introduces a home where classic architectural charm meets contemporary design in a beautifully curated space. Unit D is a sun-drenched bi-level penthouse that offers both style and functionality. The open-concept layout is enhanced by hardwood floors, a working original marble fireplace, and a seamless flow ideal for everyday living and entertaining. The updated kitchen features granite countertops and stainless steel appliances, while newly renovated bathrooms, complete with a lighted vanity mirror and a glass-enclosed shower in the primary suite, add a fresh, modern touch throughout. The spacious primary bedroom is outfitted with floor-to-ceiling custom closets, and a striking loft overlooks the main living area, complete with plush new carpeting and a skylight that fills the home with natural light. Thoughtful built-ins-including a granite-topped desk and custom bookshelves-add both character and convenience. Step outside to your private rooftop deck, complete with a hose hookup, offering an exceptional space to relax or entertain while enjoying sweeping city views. Storage is abundant, with generous closet space throughout the unit and an additional dedicated basement storage room, including a climate-controlled wine and storage area. Additional features include a working Pennsylvania blue marble fireplace, built-in surround sound, custom blinds, a Nest thermostat, smart keyless entry with video intercom and mobile access, and an in-unit washer and dryer. The HVAC system was installed in 2023 and includes a 10-year warranty for added peace of mind. The building has also been upgraded with a brand-new main roof backed by extensive warranties, ensuring long-term reliability. Ideally located in a “Walker's Paradise” (95 Walk Score) and “Rider's Paradise” (Transit Score 100), this home offers easy access to PATCO lines, Center City, and neighborhood favorites like Seger Park and Palumbo Playground. Convenient to Pennsylvania and Jefferson Hospitals and within the desirable McCall School catchment. 306 S 10th Street #D presents a rare opportunity to own a move-in-ready penthouse that effortlessly combines historic elegance with modern comfort in one of Philadelphia's most sought-after neighborhoods. A 3D Matterport tour is available for a closer look. The seller is also offering a 1% interest rate buy-down for the first year at no cost when using their preferred lender, along with a one-year prepaid home warranty.