A rare opportunity to own a light-filled, mid-century modern home, with a dramatic barrel-vaulted ceiling, constructed over four lots totaling 3092 sq ft in the heart of Philadelphia. This unique city residence, designed by noted Philadelphia architect John D Sacksteder, is an unmatched combination of wide-open one-floor living, indoor/outdoor flow to private courtyards, garage parking, abundant storage throughout, perfect location on a cobblestone street, free-standing construction, and no condo fee. The main living area in the heart of this home is connected to a large private courtyard by floor-to-ceiling windows, and natural light enters from 3 sides. The soaring height of the barrel-vaulted ceiling, and clearstory windows, in combination with the strong connection to the central courtyard, truly make it a grand space to watch the light patterns shift throughout the day. The main floor includes the open living room with a fireplace, library/bedroom, spacious dining room, and galley-style kitchen. Ascend four shallow steps to enter an oversized private master bedroom and bathroom suite offering Juliet balconies overlooking a rear terraced garden. The lower level has an additional bedroom, full bathroom, laundry, and a room currently used as an office. Both rooms on the lower floor offer patio doors providing abundant light, and access to the large terraced garden. The home is in one of the most tranquil spots in the city of Philadelphia, with complete serenity in the house when the large patio doors are open to the private outdoor spaces. The home is located on a tree-lined block of Addison Street in the heart of the Society Hill neighborhood. You can walk to everything from the restaurants in Washington Sq., to history in Old City, and Fabric Row, and the cafes/boutiques in the Society Hill Headhouse district. Even Penn's Landing and the Italian Market are not far away. It is within the sought-after McCall School Catchment boundaries, and less than three blocks from The Pennsylvania Hospital.