Build to Order / BTO (预购组屋)

On 15 April 2001, the Housing Development Board (HDB) launched its pilot Built-To-Order system (BTO) as the mode of sale for its new flats. The pilot scheme involved 2,500 new flats at four sites at Sengkang and Sembawang. It was fully implemented in January 2002, replacing the Registration for Flats System (RFS).The BTO is one of two ways in which HDB sells new flats, the other being Sale of Balance Flats (SBF)

Source : NLB