SINGAPORE A proposed HDB integrated development next to Kembangan MRT station will have about 340 Build-To-Order (BTO) units and a five-storey building with a new community club, supermarket and retail shops. The development could include two 18-storey blocks, comprising two-room flexi and four-room flats, the Housing Board said on Feb 2. The five-storey building, which will also have an.