Foreigners cannot own land freehold, but they can own buildings and secure the land via a 30-year leasehold (renewable). For private islands, many inv... Read Moreestors use a Thai Limited Company (with 51% Thai ownership) to hold the land, though the government has increased scrutiny on "nominee" structures in 2026. Closing costs are roughly 2–3%, usually shared. Always verify that the island has a proper "Chanote" (Title Deed), as many smaller islands only have lesser possessory rights that are difficult to develop legally. Read Less