My own house, separated by several suites, is the kind of single apartment, rented separately, is this reasonable?

Unreasonable. First, it is prone to hidden dangers. If you want to make an apartment, you have to pull wires in every room, which will lead to an increase in electricity consumption, which is unsafe from the fire point of view. Second, it has an impact on neighboring neighbors. Everyone living in the apartment has a different schedule, and the number of outsiders increases, which leads to unsafe property and increased frequency of use of various equipment.