As far as I can see only visible light for @matt j at the end of the tunnel is part ownership -- and gambling (a safe bet IMO) that asset prices with increase significantly over, let's say, 5 / 10 years. You then sell your apartment, take the cash, and use it as the contribution to the deposit on something wholly owned.
Trouble is I'll realistically be too old for a mortgage by then. There is no way I am saddling myself with having to work into my 70s, especially in a job that relies on fully functioning knees and crawling around on the floor for hours on end.