in the LWT television series 'Agatha Christie's Poirot' (1989-2013). The building has been used as Whitehaven mansions, the fictional London residence of Agatha Christie's fictional character Hercule Poirot. Wikipedia has an article about Florin Court that tells us:įlorin Court is an Art Deco residential building on the eastern side of Charterhouse Square in Smithfield, London.