The legal basis for the Greece Golden Visa program is the Greek Law 4146/2013, which was passed in 2013 to establish a framework for the issuance of residence permits to non-European Union citizens who invest in real estate in Greece.

The law allows the Greek government to grant residence permits to investors who meet certain requirements, including the purchase of property worth at least €250,000.

The law also establishes the conditions under which residence permits can be renewed and the criteria for obtaining permanent residence and citizenship in Greece.