The us seems to be most expensive country, as local taxes are very high on a property, The Uk, has low local taxes, no capital gains tax, and that is why it is cheapest. France is average, even cheaper than Portugal.

 The us seems to be most expensive country, as local taxes are very high on a property, The Uk, has low local taxes, no capital gains tax, and that is why it is cheapest. France is average, even cheaper than Portugal.