Gary Best Treehouse March 5, 2018 tinyhouselover Small Houses, Tiny Houses 600 sq. ft. treehouse style cabin on stilts at the Retreat at Butterfly Gap in Maryville, TN. Designed by architect Gary Best. Currently listed for $239,900. Learn more here. Images via Estately Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Like this:Like Loading... More Tiny Homes You'll Love