To change to cavity doors you will need to remove the wall each side of the doors to accommodate the cavity housing. Normal sliding doors would make a difference but the problem with them is they never stay totally closed and they do become quite noisy and annoying. This problem also applies to double cavity doors. The other option is to use bi-fold doors, they won't intrude into the room as much. Do you really need two doors there at all and is the glass above the doorway necessary? My personal preference would be to fill it all in and just have the one door to the room. You could even re-use one of your doors.

Thanks Ladies! There are four down lights on either side of those light already (LED bright white - so at night it is fine I am more after helping to lighten up the whole place during the day). We chose those lights so that the natural light from outside is not obstructed. We had a big round light before that and it blocked it out. We have solar tubes in our kitchen already and love them - this is but just one area of the house where we have these coloured doors there are 7 others in the open space leading to different parts of the house - I chose this angle as it shows the two types of doors I have to deal with. Can't change the table - it is really expensive and hubby did not like any of the lighter ones when we were looking. Our old table blended in to the floor so table had to be lighter or darker. The rug under the table and chairs help to break it all up. Am considering more small solar tubes for that particular area too.

Well...not exactly like that one, but close. Mine has a lever handle built into the larger handle, so after unlocking it we operate the lever to open the door. The one you show looks like it unlocks, then you simply push the door open. Is that right? Here's a photo (exterior and interior) of mine.

Unfortunately the door had to swing from that side due to light switches having to be a certain distance from water (shower). Plus I’d rather have the first view be of vanity and bath, rather than shower and toilet... Solution was to go for a hidden control arm (Glynn Johnson 410 series concealed overhead door stop) at the top of the door that bounces door back away from shower screen. Can’t see it when the door is shut. Plus didn’t interfere with water proofing/tiling.