One of our favorite projects is a labor of love that Richmond began at the urging of his kids. The tree house. Tree houses have long offered a magical hideaway for children. And, in more recent years, we’ve seen a groundswell of design and construction geared to adults looking for their own tree top experiences. Finished products can range from simple rustic spaces in the outdoors to Airbnb-worthy ancillary living areas that are loaded with modern creature comforts.