Welcome, I am in the same situation as you but I live on the 2 floor, mum sleep in front room.
Pont system has change in London you bid for them this is the web site us, just to give you an Idea how it work
http://www.locata.org/Home.asp
You got 2 option if your getting no where with the council, as your Husband has a wheelchair you need a bungalow that is adapted to your Husband needs, I was told by someone in the council (not naming name) that if I was to email or threaten the council that I am going to go & complain to the local paper that they would move me faster.
Also I read somewhere on the internet that someone just like you ,her husband had wheelchair , the wife took her council to court under the human act right she got 10k in compensation & got moved to a 5 bedroom house . you sound like you have a really good case .
My mother has not been asses (sp) for a wheelchair from social servers adaptation united just yet as soon as she has they give my mum a much need wheelchair & that is when I shall get the ball rolling in complaining that (We) mum needs a move , even thought she is finding it really hard going up down 4 flights of stairs when she go to day centre 2times a week , & when I try to take her out the other days , it puts her of going out because of those stairs .
Did your Husband get the wheelchair from social servers adaptation & has your bathroom been adapted ,as in shower ?
Good Luck I need a push sometime in sorting all this out in geting a move . It does get me down , so its great shareing it on hear frist time