Fttc is just being deployed to lines away from the exchange using the green cabinets. Large cable from exchange to the cab and then split in the green cab (voice line). The voice lines from the exchange are direct e0 lines. Fttc lines are not installed in the exchange for some reason, just in new green boxes beside the old green phone cable boxes. There are some exchanges that are getting a new fttc box installed outside the exchange building. But it looks like not where you are buying a new house.
Check the speed the house has now, or a neighbour, if that is ok then you have it. For me a 17m would work for work. A 3m line worked for me 3 years ago, so it would work again. Are you sure you need a fttc speed.