Complex sentence: In the Irish Free State the Ministers and Secretaries Act 1924 formally transferred the Commission's functions to the Department of Local Government and Public Health, whose successor, the Department of Housing, Planning, Community and Local Government, is still based in the Custom House.
Split into simpler sentences: In the Irish Free State the Commission's functions were formally transferred to the Department of Local Government and Public Health by the Ministers and Secretaries Act 1924. The successor of this, the Department of Housing, Planning, Community and Local Government, is still based in the Custom House.