How do I check hidden property costs before buying?

Build a checklist that includes government-related charges, transfer or registration costs, broker commission if applicable, service charges, management fees if you plan to rent, furnishing or fit-out expenses, and any finance-related bank costs.
Review not only the upfront expenses but also the post-handover cost structure.
The goal is not just to know the total figure—it is to see whether those costs materially change the logic of the deal. Some properties look attractive on paper but become much weaker once the real cost stack is fully included.