I think bargains can be found anywhere @zohaib336 just need to due your due diligence correctly London is a very aggressive market place sure but rental return income is very high and you will still have a stable asset I don't really see the market going down the £ is pretty weak now too at worst I think it might hit parity with euro but even that's doubtful inflation will keep rising with the rich getting richer i.e. property owners.

Would advise taking a mortgage over using all working capital as there will be lots of legal fees etc.