@John ********
agreed, do not sell the house. Maybe rent the house out on a year lease to a nice family, and live in Thailand one year renting and get to know everything backwards and forwards first (including visas, housing, banking, health care, getting close connections with locals and foreigners who will help you, etc etc) The value of your house in UK will only increase as years pass, and renting it to a family will act as good passive income for you. If you feel the same way in 2 years and understand everything and have your connections, then sell it, or just keep renting it. Its a good lot of land you have in UK, dont give it up.