Stately, historic Federalist townhome c. 1850 occupying a generous 22x100'+ parcel, and situated on lush & lovely, tree-lined Mount Vernon Street in the Art Museum neighborhood. This large 4 bedroom, 3 1/2 bath home offers a huge family room, a large garden with brick, au pair or in-law suite w/ second kitchen, 2 sunrooms (study and breakfast room) with garden views, multiple marble mantels, inlaid oak hardwood floors, high ceilings and sumptuous original details throughout. Enter this grand home from a marble vestibule with double etched glass doors into the foyer facing a graceful front stair. On your left, an elegant living room beckons with huge windows and doorways, soaring 12' ceilings, marble mantle, and exquisite detail. There is a large fabulous dining room for entertaining with another marble mantle and original, gilded mirror. The well appointed kitchen has loads of cabinets and counter space and a stainless appliance suite. A glorious sunroom or breakfast room off the kitchen is ideal for casual meals and has views and direct access to the garden. A powder room completes the first floor. Upstairs you can enjoy a grand salon or family room with high ceilings, crown moulding, yet another marble mantle, lots of windows connecting to a corner sunroom, presently used as a stu with bench seating overlooking the garden. In the front of the home is the master bedroom suite featuring a Birdseye maple wardrobe, walk in closet, very large marble bath with double sinks, radiant floor heat, large walk-in shower and ample closets. The top floor offers an au pair suite with living area, wood stove, full eat in kitchen and bedroom all of which connect to a back staircase to laundry station and the main level. A full bath is on this floor along with two more bedrooms at the front of the house just steps away. A huge basement with mechanicals provides tons of additional storage space. This well located home is a walker and biker's "paradise" with excellent transit options close to Drexel, PENN, 30th Street Station and the Center City business core. Just above the Benjamin Franklin Parkway and near to The Free Library, The Barnes Foundation, Franklin Institute , Philadelphia Art Museum and Whole Foods along with more museums, many restaurants Parks and playgrounds. Come make this historic home yours today!