You must be at least 55 years old and sell your existing property (whether it’s an HDB flat or private property) in order to buy a studio apartment under this scheme. Studio Apartments were specially designed for elderly residents, offering sufficient living space for one- or two-person households, with elderly-friendly fixtures and safety features. This scheme has been replaced by the 2-room Flexi flats. All new flat applications go through a ballot, and certain priority schemes may improve your chances of securing one.