The terms "furnished apartment" and "partially furnished apartment" are not precisely defined by law. However, this refers to the furnishing of the rented apartment with furnishings by the landlord.
From furnished living space spricht as a rule, if the landlord provides more than half of the furnishings necessary for everyday life. It is crucial that the furniture has been agreed in the rental agreement – not only that furniture is actually available.
A partially furnished apartment liegt if only a few pieces of furniture or furnishings are provided, but which do not make up the majority (usually half) of the necessary equipment for housekeeping. Examples are a fitted kitchen, cupboards or sofa.