Apartment building owners can freely negotiate the fees with the building management contractor. Most owners, however, base the fees on the “flat fee for administration expenses” (§ 22 Tenancy Act). This is currently (as of 1 May 2021) €3.60/m2 of usable floor area per year. Therefore, the fee for the building management of an apartment building with 1,000m2 of usable floor area would be €3,600 per year (excluding VAT).