The museum is expected to attract two million visitors annually and create more than 1,500 jobs.London Museum is being developed by the City Corporation, in partnership with the Greater London Authority,

In August 2024 the biting satirist claimed responsibility for turning a 1990s police sentry box on Ludgate Hill into a vicious-looking aquarium, using translucent spray paint. It was part of a spate of critter-themed artworks that Banksy delighted London with, others including a gorilla at London Zoo and a pelican outside a Walthamstow chip shop.

London Museum has announced that it has acquired Banksy's Piranhas artwork which appeared in a police sentry box in the city last summer.

Banksy's piranhas artwork will go on permanent public display next year at London Museum, when it opens its new premises in Smithfield. Featuring the fierce fish making an aquarium out of a police sentry box,