From the website of Tipton-Haynes Historic Site in Johnson City, TN:
"Contained within the large white house is the 25' x 35' log cabin of Col. John Tipton. The Tiptons enlarged the home and built a shed porch across the front of the house and built a separate kitchen. In the 1850s, Haynes changed the front porch to what is seen today and constructed his law office next to the house." More history here. And here is my previous post. The photo to the right is of the small law office.