SINGAPORE — The Housing and Development Board (HDB) will raise the income ceilings — for the second time since 2011 — for Build-To-Order (BTO) flats and Executive Condominiums (ECs), said National Development Minister Khaw Boon Wan yesterday, as he looks to “give every Singaporean couple a chance” to live in an HDB flat even though they may have greater means and do not need Government-subsidised housing.