
Yes, both renters and lessors can terminate the apartment. However, you must comply with the terms set out in the contract. Deadlines and dates note. Anyone who receives a notice of termination has 30 days time, to oppose it at the conciliation board.
It is also possible to use the apartment outside the official termination dates to give notice. However, you must then find a new tenant yourself and propose one to the administration. If you give notice in due time, the administration will take over the search for a new tenant.