I have a 2 bedroom flat that we have just renovated, removing a wall between Kitchen and Living room.

We have have had building control out to check out the work, and they have adviced we need to build a door between the Open plan Living room/Kitchen and hall as the bedrooms run off this.

Is this correct?

David if you do not have a door between the open plan Living room/Kitchen and hall how do you get in or out of the living room or does the entrance door open into the Living room/Kitchen? Without a full understanding of the layout of your flat it is difficult to provide an answer.