(1) The lessor may terminate the lease of support spaces or parts of a plot of land that are not intended to serve residential purposes without a legitimate interest within the meaning of section 573 needing to be given if they limit the notice of termination to these spaces or parts of the plot of land and if they intend to use them
1. to create residential space for the purpose of leasing, or
2. to provide the intended or existing residential space with support spaces or parts of a plot of land.
(2) 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.
(3) If commencement of construction work is delayed, then the lessee may demand an extension of the lease by an equivalent period of time.
(4) The lessee may demand an appropriate reduction of the rent.
(5) A deviating agreement to the disadvantage of the lessee is ineffective.