Fourpure Brewing Co

Jezza says

This one is not quite under a railway arch but it's close to South Bermondsey station (trains from London Bridge, which take just 5 minutes). Slightly tricky to find despite its proximity to the station: from South Bermondsey station, go onto Rotherhithe New Road and turn right. Take a right into the industrial estate at its main entrance c.100 metres before the railway bridge; follow the road round to the left inside the estate and go under the railway; you'll eventually see Fourpure ahead of you at No 22. The tap room set up has changed and been moved around a few times over the years, and the July 2019 incarnation sees the biggest version yet: it's very smart and spacious, with a total of 43 taps, though this is basically two banks of the same beers duplicated, so an overall total of around 22 different beers at any given time.

Steve says

At the southern end of the Bermondsey Beer Mile Fourpure recently opened a new taproom space a couple of doors down from the brewery. It's a great, split level, space with a central island bar that boasts two banks of 20 taps, duplicated on either side, of their own beers. This is now one of the nicest taprooms in London.