We have built a self-contained studio flat above our detached garage to cover several uses. Our house isn't big at all (effectively two double bedrooms) and we want to keep our options open, so initially it was for son to have a place to crash with friends, family staying over, visitors etc.
However, we know several people who have rented out through Airbnb, Spareroom and also 4 night agreements with local contractors, so may even try this at some point.
It's one big room and will have kingsize bed, sofa, coffee table , desk/work area, full (small) kitchen with breakfast bar, and large shower room. It's completely self-contained, accessed via an external staircase.
We are now at a point where we need to make lots of decisions with the plumber and electrician. The only thing we are deliberating about is a washing machine. Is this something that is expected in this kind of set-up?