Square nails used on the first floor of this Queen Anne style residence suggest it was built before the late 1880s. Originally a one-story structure, the house gained second and third floors soon after 1900, when Louis Alfred Scott, born in 1852 and died in 1934, purchased it. Scott became a successful McKinney businessman and active civic leader. Outstanding features of the home include its octagon tower, gingerbread detailing, and Colonial Revival porch.