The Auditing Union of Housing Co-operatives activity (ZRSM RP) provides associated housing co-operatives with assistance in their statutory work by conducting audits of housing co-operatives; representing the interests of the associated co-operatives with state administrative bodies; submitting motions and postulates; elaborating and propagating training materials for co-operatives regarding legislative, organisational, financial and technical issues; conducting training and publishing activity.

Founding year: 1992
Members: 540
Ownership: 350.000
Cooperative ownership: 800.000
Rented housing stock: 90.000