The Queen- Anne style Victorian house built by I.W.P. Buchanan is a George Barber design. Barber was a well-known American architect headquartered in Knoxville, Tennessee in 1888. Construction began on the home in 1894 and was completed in 1897.
Isaac William Pleasant Buchanan (1866-1943) came to Lebanon as a child when his father, Dr. A.H. Buchanan, accepted a teaching position at Cumberland University. Buchanan would receive his bachelor and doctorate degrees from Cumberland and serve as professor of mathematics at the school in 1894-1898.
Buchanan was a natural at mathematical and mechanical applications. He held several patents and in addition to founding the Castle Heights School in 1901, also designed its Main Administration building. Buchanan married Willie Conn Elkins in 1892.
The home was listed on the National Register of Historic Places in 1979.