Come across a property being sold as a block of flats which is in actual fact one house 4 families have been living in. It is divided up with just a door between each unit but only has one electrical box, water, gas etc. This would have to be rewired, possibly replumbed for a seperate hws in each. I believe you would have to install fire rating wall between each unit and up into the roof. Would there be any council requirements for making this into 4 seperate units.