Hi Debbie
Thnaks for your reply. Yes, we did think about taking him out on a lead but I wondered if this might make him worse, he does seem to be content indoors (during the day anyway) and doesn't try to get out so we wondered if we took him out on a lead he would demand to go out all the time then. He doesn't run to the door when we leave the apartment, and he has been out on the communal stairs but gets abit nervy and comes back into the apartment quite quickly. He only seems settled when the door is shut.
The other problem is that none of the windows that he looks out of are where he would go out to, as we are at the back of the block and the communal door which he would go out through is the front, so I doubt he would recognise where he was when he got out.
I think, as he is not putting up a fight, it might be best to keep him in until we move again. He does seem happy during the day, and in the old house he would have preferred to sleep with us but just wasn't allowed. He is probably trying his luck abit as he hasn't been able to sit outside the bedroom door before, he may well have miaowed all night at the old house but we just never heard him!
Thanks for your help
Jo x