Sometimes clubs get evicted so the building can be turned into condos. This happens in San Francisco too. In a city where building is limited, clubs are often located in “blighted” areas that are ripe for redevelopment with few NIBMYs.
There was a spot where the basement room had seats from airplanes and was super small and intimate that I’ve never been able to find again after a DnB party (if anyone recognizes this description, please fill me in). I have a sense that there are other places I’ve been that are no more, but it’s been a number of years and there was a lot of alcohol involved.
Hell, there were two websites for tracking events that went defunct over time. BayRaves.com and something else that I don’t recall. We used to have outdoor festivals like Love Parade driving through the streets and then circling up to party at the end of the route. It seem like the scene has been on a slow decline forever.
I hope they've reversed that trend, but I no longer live in London and haven't followed it very closely.
[1] https://www.theguardian.com/uk-news/2016/oct/22/london-sadiq...