The walls of the house consist of characteristic brickwork of red stretchers and black headers laid up in Flemish bond, with square piers at the front corners and on each side of the entrance, and there is the more or less customary projecting belt at the second-floor level. On the second story the windows are set close up under the heavy overhanging cornice, with its prominent modillions, while on the lower story there are relieving arches with cores of brick instead of stone lintels so common on houses a few decades later. There are similar arches over the barred basement windows set in brick-lined areaways. Interesting indeed is the scheme of fenestration. Although formal and symmetrical on the front, the windows piercing the other walls frankly correspond to the interior floor plan, although ranging for the most part. Unlike the usual arrangement, there are two widely spaced windows above the entrance, while the narrow flanking windows either side of the doorway may be regarded as one of the earliest instances of side lights in American architecture. The severely simple entrance with its high narrow paneled doors without either knob or latch is reached from a brick-paved walk about the house by three semicircular stone steps such as were common in England at the time, the various nicely hewn pieces fastened securely together with iron bands. The front door opens into a large square hall with a brick-paved floor and walls wainscoted to the ceiling with white-painted wood paneling. There is a fireplace on the right, and beyond an archway in the rear a staircase ascends to the second floor. To the right of the hall is the parlor, also with paneled walls, and a fireplace surrounded by pink tiles. In the wainscoted room back of this the sliding top of a closet offers opportunity for a person to conceal himself and listen through a small hole to the conversation in the adjoining hall. To the left of the hall is the dining room, beautifully wainscoted and having a built-in cupboard for china and a fireplace faced with blue tiles. The iron fireback bears the inscription "J. L. 1728." Back of this through a passageway is a small breakfast room, whence an underground passage for use during storms or sieges leads from a trap door in the floor to the barns. The second-story floor plan is most unusual. The library, a great long room, extends entirely across the front of the house, with its range of six windows and two fireplaces on the opposite wall, one faced with blue tiles and the other with white. Here, with the finest private collection of books in America at that time, the scholarly owner spent his declining years, the library going to the city of Philadelphia on his death. Two small bedrooms, each with a fireplace, were occupied by his daughters. A little back staircase leads to the third floor, where the woodwork of the chambers was unpainted.