NC tree house builders : Panthertown First Floor Framing Begins A month ago, the first story post and beam framing went up on our Panthertown wilderness project, using recycled barn wood and cedar. View our site for newer photos of this nearly complete treehouse! View our project page for newer photos The mountains of North Carolina are a perfect place for your treehouse. >Learn about our process for building a project. World Treehouses is an Asheville-based builder of treehouses, tree platforms, rope and suspension bridges, and other tree-centered projects. Want a tree house in the Asheville NC area or beyond? Get in touch.