File:William Maclay Mansion, Front Street, Harrisburg, PA.jpg

English: Built in 1792 as a federal-style dwelling for William Maclay, one of the founders of Harrisburg and the first ever United States Senator, this house was heavily renovated in 1908 in the Colonial Revival style. The original (front) wing of the house features a rustic limestone exterior with a side gable roof, twelve-over-twelve and eight-over-eight double-hung windows, a central hall plan with five bays on the front facade and an entrance in the middle into what was originally the basement, with the original front porch and steps having been removed. With the changes made to the house by architect Miller Kast in 1908 to serve as a mansion for William E. Bailey, the original main entrance bay on the first floor became home to a window with a decorative surround featuring doric pilasters and a broken pediment, with a semi-circular portico and decorative surround at the sunken basement entrance door featuring doric columns and pilasters, and a cornice with modillions and dentils, a cornice with decorative dentils and other trim elements at the base of the roof and along the roofline, three Colonial Revival-style dormers with arched and triangular pediments and arched double-hung windows on the front facade, and two gabled rear additions, one of which has a roofline parallel to the front wing of the house, with large casement windows facing onto a terrace, which was also a later addition to the house, and a long rear wing with a roofline perpendicular to the front of the house, also an addition, featuring an oversized basement, porch along Academy Alley on top of the basement, multiple roof dormers, and partially enclosing a courtyard to the south of the wing behind the original house, where the main entrance to the building is now located, which features a decorative canopy supported by brackets and a small stoop. The building presently houses the Pennsylvania Bar Association, as it was adaptively reused as an office building in the latter part of the 20th Century. The house is a contributing structure in the Harrisburg Historic District, listed on the National Register of Historic Places in 1976.