From City of London : The Pool of London Partnership was established in 1996 and operated in an area stretching East from London Bridge to the Butler's Wharf / St. Katherine's Dock area and included the communities in North Southwark and the Wapping area of Tower Hamlets.
This booklet gives some of the background to the developments in this area. The little map at the top is helpful.
2021: Our colleague, Alan Patient, spotted a replacement 'Great fire of Tooley Street' plaque, now promoting London Bridge City. Seems likely they are replacing all the plaques as they roll out this new branding. They probably have greater resources for creating these plaques than we have for collecting them.