Can I buy a 4-room flat?

No. You must fulfill certain conditions before purchasing a 4-room flat, such as being at least 21 years old, having a valid family nucleus (e.g., married couple, fiancé/fiancée), not owning or having recently sold any private property, and having a monthly household income that does not exceed S$14,000 (or S$21,000 if purchasing with extended or multi-generation family). If you are a single Singapore Citizen aged 35 or above, only 2-room BTO Flexi units are allowed. Alternatively, you may want to consider other flat types depending on your eligibility and circumstances.