What costs beyond the US$300,000 property price should I expect with the real estate option?

The US$300,000 minimum is only the property price. On top of it, the Citizenship by Investment Unit charges government processing fees and due-diligence fees for each applicant and dependant, and additional per-dependant fees apply for larger families.

You should also budget for the usual real estate transaction expenses, including legal and conveyancing fees, taxes or stamp duties, and any developer or closing charges. A common mistake is budgeting only the headline property value and being caught short by these fees, so ask a licensed agent for an all-in cost estimate before signing the purchase agreement.