I guess the thinking must be that if it were taxed and say you bought a house for 500k and a decade later it is worth 750k and you have to move for another job to a place where a comparable house would also be 750k$, then you can't afford the "same house" any longer because you have to pay tax on the 250k gain. The funny thing is I don't think we would see this kind of increase on the house price if it where taxed, making the point pretty mood.

Does anyone know of a country with tax on capital gains from selling a house and how the prices on houses are there?