It's unlikely to work, even if you position the router in the middle of the house. Mine struggles in a much more modest house built circa 1820. We have a brick chimney running through the centre of the house and the other side of that is dead to wireless.
You can get repeaters which effectively boost and forward your signal, and they work quite well - if you get kit from the same company. Mix and match may sometimes work, but it's full of problems. Remember too that the repeaters need a strong signal to the base station, otherwise you will be reduced to a slower speed even if you can get a strong signal from the repeater.