(1) Notice of termination is permissible at the latest on the third working day of a calendar month with effect for the end of the second month thereafter. The notice period for the lessor is extended, by three months in each case, five and eight years after the residential space has been made available to the lessee for the latter’s use.
(2) For residential space that is leased only for temporary use, a shorter notice period may be agreed.
(3) For residential space under section 549 (2) no. 2, notice of termination is permissible at the latest on the fifteenth day of a month with effect for the end of that month.
(4) An agreement deviating from subsections (1) or (3) to the disadvantage of the lessee is ineffective.