Can you buy a house with BTC? Yes! All you need is a buyer with coins and a seller that will accept them. The value of the transaction is as of the date of the contract, when the coins change hands.
I think it is possible and it is actually a big advantage for us to buy properties using our earnings through bitcoins. There are companies who have just started to accept bitcoin as a mode of payment and to transact. Instead of paying straight to their bank accounts , they also believe that bitcoin is a faster and an easier way.