hm ok, when I skim through all the comments there is hardly anything optimal. Staircase not, toilet not, cloakroom not, utility room not. Unfortunately, we only have 70sqm per floor. From this, we have to try to get the best out of it. I would be happy to receive suggestions for an optimal floor plan, I would really like to see how this could be optimally solved. Currently, we live in a rented house (120sqm). Therefore, I can already quite well estimate what is needed. The extended garage is also used for tools, etc.