Key legal question
Whether the tenant validly waived future rent reductions for renovation nuisances in the lease clauses
Extracted holding
The advance waivers were invalid because, when the leases were signed, the tenant did not have sufficiently concrete information about the scope, timing, duration, and practical impact of the renovation works.
Extracted reasoning
Article 260 CO protects the tenant and is relatively mandatory. A departure from the statutory system is only valid if the tenant is specifically and concretely informed when deciding. Here, key details were disclosed only years later, so the waiver was not made in full knowledge of the facts.