We live in a terrace and at the moment you walk into a small entrance hall and then down a small dark corridor to the stairs and open kitchen. We see thinking of taking out the corridor wall so after the entrance you would walk straight into the sitting room. There would still be a door from the sitting room to the stairs and from the sitting room to the entrance. The advantage is that that I hate the narrow corridor and it would make the sitting room feel a bit bigger. Are there any disadvantages we haven't seen??