More than 1,500 flats sold under HDB’s open booking scheme Toggle share menu Advertisement More than 1,500 flats sold under HDB’s open booking scheme A general view shows newly occupied Housing Development Board (HDB) public residential flats in Singapore on Mar 5, 2018. (File photo: AFP/Roslan Rahman) 02 Mar 2021 12:30PM) Share this content Bookmark SINGAPORE: More than 1,500 flats have been sold under the open booking scheme since its launch in June 2019, said Minister of State for National Development Tan Kiat How on Tuesday (Mar 2). Mr Tan was responding to a Parliamentary question by MP Gan Thiam Poh (PAP-Ang Mo Kio) on the number of Housing and Development Board (HDB) flats sold under the open booking scheme since its launch.