I converted my detached garage in to a studio, which doesn't had a bathroom. So if clients want the loo, they have to go in to my house. Although many don't ask, I have to be prepared in case that one person needs to go. It really isn't ideal:
- as well as my studio, my house and bathroom have to be clean, tidy and look perfect at all times
- family must be out the house all day Saturday when I'm working
- I can't work evenings as I have a 2 year old who I don't want to be disturbed by clients coming in to the house
- I have dogs so they have to be locked away
- Its sometimes off putting to people. Many apologise because they feel they are intruding.
Without a doubt, I would add a bathroom to any cabin or build you do. It makes things so much easier!