The main block of this handsome brick mansion was the original Pryor farmhouse. Architect Franzheim was commissioned to enlarge it at the same time he designed Altenheim (the John O. Schenk House) ( WH63) on National Road. Franzheim directed the demolition of an earlier house on the site of the Schenk House, but reused its portico here. This rather grandiose affair, which completely dominates the house, consists of a projecting, tetrastylar, pedimented central section, with shallow, recessed single-bay sections right and left. The eight giant-order Corinthian columns and two pilasters are beautifully fluted and have elegantly carved capitals. The five-bay house they front, along with an addition, was used for a time in the 1990s by the Elm Grove Church of God.