 It was designated a Grade II*-listed building in January 2016.The sculpture is the culmination of an idea that Gabo developed from the mid-1920s, to implement the ideas published in his 1920 "Realistic Manifesto".He made a series of models and maquettes over the years, including his work of "Model for "Torsion"", a small -high Perspex model; his larger work "Torsion" from 1929–37, a -high model also in Perspex; and his 1960–64 "Torsion (Project for a Fountain)", an -high bronze maquette.