Document background
The Rent Increase Notification Letter is a crucial document in Swiss property management, required whenever a landlord wishes to increase the rent of a residential or commercial property. Under Swiss law, rent increases must be communicated using official cantonal forms and must provide specific justifications such as increased costs, reference interest rate changes, or value-adding improvements. The document must be served with appropriate notice periods (typically at least three months before the increase takes effect) and must coincide with the next possible termination date of the lease. The notification must include comprehensive information about the tenant's right to challenge the increase within 30 days at the local conciliation authority. This formal document ensures transparency in the rental market and protects both landlord and tenant interests under Swiss tenancy law.
