We went sale agreed on bank sale in September (2016), we finally got the keys in June.... so 9 months give or take.
It was stressful, things took forever to get from the bank and we almost lost the house at the last minute because the person in the bank just didn't want to sign the last bit of paper apparently. We had to apply for a new loan offer for the house as the time was running out on the original offer, which was just another bit of bother with everything else going on.
We got a great deal on the house but it wasn't without stress and a small few tears. We always kept an eye on what else was on the market, just in case.
(The above is a very short summary (and simplified version) of the process we had, I was constantly emailing and on the phone. I'm sure my place of work hated me!)