§ 116

When an apartment is rented wholly or partly for residential purposes, the landlord's obligation for internal maintenance is considered fulfilled when the landlord has continuously allocated the amounts required for this purpose according to the rules in §§ 117 and 118. If a lease agreement includes premises rented for residential purposes as well as premises rented exclusively for non-residential purposes, and the premises are located in separate physical units, the first sentence only applies to the part of the leased property rented for residential purposes.