Your author tends to be a bit fussy about pubs. Generally it should have history, have an original interior and not be too busy. The Founder's Arms basically passes on none of these counts. However, it does seem, at least, to have a little bit of history, as rumour has it it was built on the site of a foundry where the iron work, and possibly the bells, for St Paul's were forged and cast.
It's saved by its brilliant views to St Paul's and the City, and its outside space by the river, which offers sunshine in summer and blankets and patio heaters in the winter. In the heart of tourist land and an excellent staging post for a wander from Bankside to somewhere more central, its easily earned a place in your author's heart despite its boring appearance, bland interior and patchy food.
For more information, visit the rather basic website at http://www.foundersarms.co.uk