This is an imitation Chinese (not Japanese) Tea House.
I needed a new shed, checked the prices for a 6 x 8 and decided I could make one cheaper myself. As it turned out it was only 'slightly' less, - but its my own design and its different! At the moment it serves as a workshop, smoke room, and somewhere to drink out of the rain. My next project is a summerhouse of similar design - except it will be an ale house, not a tea house!