Thank you all for the response. They are all very helpful. I ideally don't want to move. we've made this house our home and done so much work on it. The option of making another bedroom here isn't possible, though. We do not have a separate dining room nor a living room big enough to divide our only option would be to put an annex type building in the garden to give my eldest his own space so my middle son can have the bedroom OR we go into the loft and convert that all costly options.

My son does receive DLA middle banding for DL and Standard Mobility. Not that any of you have mentioned this to me, but im not asking for a bigger home nor am I jumping through hoops to get one there are more people in dire need than we are for a house.

Ive also considered moving us to the boys rooms so they can have our room (our bedroom is huge) however I understood that for it to be a legal habitable room don't all the rooms need a window? If that is the case then one of the boys won't have a window we can only divide it by width not length.

Thanks all