PROBLEM TO BE SOLVED: To redevelop and revitalize a tree house culture cultivated in natural forests in Europe and the United States in artificial forests of cedar and cypress represented by Japanese satoyama, which are no longer utilized due to recent changes in demand for building materials. Provide an elevating tree house and an elevating veranda. SOLUTION: An elevating tree house 5 and an elevating veranda 8 have trunks of trees 1 to 3 as core pillars, and unitized or modularized frames, floors, roofs, and side walls are octagonal at the roots of trees. It is used by hanging it on the upper part of a vertically extending tree 1 such as cedar and hinoki found in Japanese satoyama, etc., and fixing it to the adjacent trees 2, 3 and the same or different module structure 6 or veranda. By installing 8 and installing a staircase ladder 7 and a suspension bridge 9 between the structures, it becomes a collective structure on a tree. Even in winter, green leaves 4 grow thick on the structure, and there is no need to grate snow or shovel snow, providing a maintenance-free forest and a comfortable space on trees. [Selection diagram] Fig. 1
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