It is never clear what is on the first floor, but nobody has access to it.
Michelle has been using the basement for storage for some time. At the moment, it is limited to band merchandise, but she has plans for bigger things.
The basement appears to be too big for the warehouse above it. Several doors shouldn’t be there. One of them leads to a very unique ice cream parlor in the Kerensky district.
They should suit Hilda and Blossom’s needs just fine.