They claim that this is the smallest pub in London – the tied lease for the pub behind Marlebone station is yours for £16,900 per year.
Flowers Original and London Pride are on tap. The sort of pub you wished was at the bottom of your street, according to Fancyapint.
I don’t know if you can influence the beer range with the tied licence, you’d have to ask Stonch.
It may not be the best time of entering the English pub market, but if it’s your dream…

[...] London’s smallest pub is for sale. Just in case you’re looking for a business opportunity. The area around Marylebone station has an air of forgotten London, and that’s certainly the feel you get here. Staff chat away to customers old and new alike, and an easy going atmosphere permeates and if the landlord’s on form you’ll hear the whole, tragic story of his life and the pub. The jukebox might seem a tad incongruous, but there’s some space outside if you need to escape the music. [...]