Thanks for your reply. My dad gave me the house because he thought I would be able to use it to raise capital to buy a place in France, which unfortunately turned out not to be the case as I didn't have any income in the UK, and also because my sister ended up with my grandparents house. I have a "deed of gift" for the property and I'm sure my dad had the property valued not long before he gave it to me, but I never paid him any money for it, so am not sure if I might be liable to pay tax on the whole sale price of the property.