Just found this website which has some interesting detail about this building at No 11 Dock Street.
The builder was Sir William Cubitt 1785 - 1861 Railway and Canal Engineer and creator of the prison treadmill. The Architect was an American, Henry Roberts 1803 - 1876 from Philadelphia. He eventually set up the Society for Improving the Condition of the Labouring Classes. Roberts was the designer of the current Fishmonger's Hall situated on the north bank of the Thames just to the West of London Bridge.