\u201cHousing Minister, Darragh O\u2019Brien, is failing to meet any of the targets on delivering affordable homes \u2013 a punitive 10% tax on vacancy and dereliction should be introduced and a levy imposed on investment funds.\u201d \n\nThat\u2019s the view of Social Democrats Housing Spokesperson Cian O\u2019Callaghan who spoke to Shane this morning.