Energy costs during the term of the lease: The rent is generally a flat rent based on the currently applicable costs for energy, heating and water provision. Due to the current situation on the energy market in Germany, the landlord reserves the right - to pass on rising costs for the provision to the tenant even during a current lease in the form of a rent increase. A corresponding rent increase due to rising energy costs will be notified to the tenant in writing 14 days before coming into forc...