Lambeth Palace Road London SE1 7XH St Mary's Gardens | Lambeth CouncilSt. Mary's Gardens is a small open space in Waterloo and within easy travelling distance of Westminster, Albert Embankment and the South Bank.St. Mary's Gardens is a small open space in Waterloo and within easy travelling distance of Westminster, Albert Embankment and the South Bank. The Gardens are adjacent to Lambeth Palace, the London home of the Archbishop of Canterbury, as well as the https://beta.lambeth.gov.uk/parks/st-marys-gardens