You need to start with preparation.

You need to start with preparation. If it is subsequently planned to replace furniture or appliances, you can immediately get rid of it so as not to clutter up the room. Then the line of the old finish: wallpaper, tiles, flooring, paint — which must be removed. There will be no superfluous check of communications, electrical wiring and, if necessary, their replacement. And in the case of redevelopment — laying new pipes, wires, installing a sufficient number of sockets.