Mortgage providers usually agree to a lending limit of up to 66% on 1st mortgages. If financing in excess of 66% is required 2nd mortgages apply, which follow the 1st mortgage in rank and have a 0.5 to 1.0% higher interest rate.
Example of a possible distribution: The property value is CHF 1,000,000. The bank grants a 1st mortgage of CHF 660,000 and a 2nd mortgage of CHF 140,000. The remaining amount of CHF 200,000 must be provided by the property owner as personal capital