The security deposit is a deposit which is normally in the amount of three months rent and is given to the landlord as a collateral so that the landlord can settle his rental arrears or repairs as well as damages. After the contractual relationship has ended, the deposit, including interest, must be returned to the former tenant.
A rent index is an overview pertaining to the customary comparative rent within privately financed residential construction. It gives people an overview of where rent is the highest.
The co-ownership share is the owners share of common property (i.e. real estate, stairwell etc.). This is defined within the declaration of division.
