Outdoor, Trees, Decking Patio, Porch, Deck, Wood Patio, Porch, Deck, and Woodland Stubb and her family moved to their home, located on 2.25 acres just north of Baltimore, in 2001. "The outdoors here are a big playground," she says. "We had always wanted to build something for the girls that looked natural." In the summer of 2008, they finally materialized their wish with the 128-square-foot "tree house" that they designed themselves. Drafting the plans came naturally: Laurie is the principal of Place Architecture, Inc. and her husband, Peter, is an architect at a firm that focuses on institutional projects.Photograph courtesy of Laurie Stubb.  Photo 12 of 25 in Photo Essay: Enchanting Tree Houses from Baltimore Tree House