The McKay House is a sprawling, two-story frame house sited at the top of a sloping, wooded parcel. The gable-roofed house is clad in vertical wood siding and has deep eaves and exposed rafter beams.
As built, the house was originally smaller in size. It had a rectangular footprint with an open living/dining area, three bedrooms, and a detached carport connected to the house by a breezeway. Terraces and a balcony off of the second-floor spaces encouraged indoor/outdoor living.
In 1978, a one-story addition was built off of the living/dining space, transforming the footprint of the main house to an L-shape. The addition enclosed one side of the breezeway connecting the main house to the carport. A second story was built on top of the carport and a corridor was built above the breezeway at the second floor to connect the space over the carport to the main house. Aside from the addition of a new screened-in porch and landscape improvements, the house retains its 1978 configuration.
The McKay House was designed by architect James Evans. Evans's own home (Evans House, 1961) was built next door. Emily B. McKay acquired the property in 1957 and the house was completed between 1960 and 1961. The two-story house had a rectangular plan with a 3' roof overhang and a second-floor wood deck along one side. A stone wall partially enclosed two sides of the house. A flat-roofed, two-car carport was set at an angle to the main house. The original sketches in the assessor property street cards are unclear, but it appears that the house and garage were connected by a breezeway. The house was constructed with a concrete block foundation, vertical wood siding, and a gable roof clad in asphalt shingles.
In 1968, an addition was constructed on the house-facing end of the carport, presumably necessitating the remodeling of the original breezeway. In 1978, a one-story, gable-roofed addition was constructed at the rear of the house. A small fieldstone patio adjacent to this addition may also have been added at this time.
In 1998, Elisabeth R. and Richard W. Taylor acquired the property. In 2003, George F. DuPont purchased the property. At some point after 1988, a small second-floor wood deck was added at the front of the main house and a circular flagstone patio was constructed at the side of the house.