A few years ago a friend of ours owned a self-storage business. She had a park model set up behind the main office. She used it as a sewing studio and temporary "day-home". When the employee was in the office, she would be back there sewing away. She had her machine set up in the bedroom and her 10 needle in the dining room. She was there in case she were to be needed in the office, but far enough away to not always be hounded by customers wanting to talk to her about getting a "deal" on rent. It was really nice. She could just close the door and leave and not have to put stuff away. Like having a private studio.