Paethongtan Shinawatra, the youngest daughter of ex-premier Thaksin, has bought a luxury home in Hong Kong last month, the Straight Times reported.
According to land registry records, the three-storey house, located at the King's Park Hill development, was priced at HK$4.5 million, or 20.4 million baht.
The deal was signed on Nov 24.
The publication reported that Ms Paethongtan started negotiating the deal for the property on the Kowloon peninsula before Mr Thaksin divorced his wife Khunying Potjaman.
The family reportedly owns a flat in London and a house in Surrey, south of London.