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Terminating a lease: notice periods and form
For residential leases of indefinite duration, either party may terminate by giving at least three months' notice, six months for commercial premises, expiring on the date set in the lease or, if the lease is silent, on a date fixed by local custom or at the end of a three-month period of the lease (art. 266c and 266d CO). Notice must be given in writing. The landlord must use the form approved by the canton, otherwise the termination is void (art. 266l and 266o CO). The party receiving notice may challenge it, or apply for an extension of the lease, before the conciliation authority within 30 days of receipt (art. 273 CO).
