"sadly they closed"
The place has gone or never existed. A user of Organic Maps application has reported that the POI was visible on the map (see snapshot date below), but was not found on the ground.
OSM snapshot date: 2023-09-20T00:34:57Z
POI name: The Barrel Project
POI types: amenity-pub
#organicmaps ios

The Royal British Legion

Check shops along here. FHRS entries suggest several changes. #surveyme

Is "Haven Beauty" now called "The One" (see https://theonelaserclinic.co.uk/contact/ )? #surveyme

Changed usage from being a pub to a therapy clinic

via StreetComplete 49.0

Footpath

via StreetComplete 55.0

Private road with gate

via StreetComplete 55.1

Path here

via StreetComplete 55.1

Pub is now flats

via StreetComplete 55.1

Corner is London Bridge Local and next door is office

via StreetComplete 56.0