At the end of a slightly curving drive, the John Coulter House emerges from its wooded site behind unassuming rough stone walls fronting a gravel parking court. The rectangular house, designed by John Pekruhn (1915–1998) of Pittsburgh, is an excellent example of 1960s styling and craftsmanship. The house is integrated into the site through a series of enclosed courtyards with native stone walls, expansive floor to ceiling glass windows opening to the courtyards, and a horizontal, flat-roofed profile. Despite the modernist appearance of the exterior, the house has a surprisingly symmetrical room arrangement, evidence of Pekruhn's Beaux-Arts training at Carnegie Institute of Technology. A large living room and dining room are separated by a shared massive stone fireplace. Service rooms adjoin the dining room to the north, while private family accommodations are off the living room to the south. Interior detailing includes slate floors and built-in cabinetwork.