Too many buildings remain unsafe after Grenfell disaster, housing minister warns the Lords. Wajid Khan tells House of Lords remediation work is yet to start on half of properties with unsafe cladding. Far too many buildings remain unsafe after the Grenfell disaster, with dangerous cladding remaining on at least 2,400 blocks, a housing minister has warned. Wajid Khan, a Labour peer and housing minister, said on Friday that remediation work had not started at approximately