Extra kitchen and bathroom in the house for room rental

Questioner

I have been renting out rooms in a single-family home for a long time. I also have a conversion permit for this. Now the neighbor has complained to the municipality that there are multiple kitchens and an extra bathroom and that it is causing him so much trouble. Apart from the nuisance aspect, I would like to know to what extent the municipality can do something about an extra kitchen and/or bathroom. They are coming by now to view the situation and will then come up with a judgment about whether it needs to be adjusted, which of course I do not want at all. In fact, it is the case that in a non-independent living space (top floor) there is an extra bath (open space) and a simple kitchenette. Toilet is shared and space has no private front door. An internal door of course, this cannot be locked from the outside due to escape route for calamities. In addition, there is a non-independent living space, where in 1 of the 2 rooms of that living space a small kitchen was also installed in the past. In this living space, bathroom and toilet are shared. I myself thought that there can be no question of an alleged division, since sanitary facilities are shared anyway. The non-independent living space with bath, cannot be locked from the outside, because it is also an escape route in case of calamity. Regarding environmental permit, I think this is not necessary in case of an extra kitchenette and/or bath. No structural changes have been made, i.e. no walls removed or anything else done that could affect the construction of the house. Am I missing something that could cause the municipality to request that this be changed?

Lawyer

As you state it, the situation does not give any reason to assume that there are multiple households in your home (more independent units) because the requirements for this are not met lockable from inside and outside, own kitchen and toilet. That does not mean that the municipality agrees with this, but that you can then better object.