Search the historical London street directory, and London pub history site including early street addresses in London through the Victorian pub history of London. This search engine is not brilliant, try address searches in the main google search to get better results. Searches on people names do appear to work, I think. Let me know!
London Street Listings Index in 1921.
Jacob Street, Mill street, Dockhead (SE1) (Bermondsey)
1 Stave Porters, Horace William Irwin
Spillers Victoria Foods Ltd
Gardner J & Co Ltd, iron plate workers
23 George Edward & Sons Ltd, book sellers
26 Padmore John Richard, carman
Balmer Henry, chandlers shop (1 Farthing alley)