1 Blackfriars or One Blackfriars (informally known as The Vase) is a mixed-use development under construction at the junction of Blackfriars Road and Stamford Street at Bankside, London. The development is made up of a 52-storey tower of a maximum height of 170m and two smaller buildings of 6 and 4 stories respectively. Uses include residential flats, a hotel and retail. In addition a new public space will be created.