First announced back in 2018, the 21,500-capacity venue was the brainchild of Madison Square Garden Entertainment Corp (MSG), the team behind the iconic New York venue of the same name, and would have been the largest concert arena in the UK.The plans for the venue – which would have been the city’s equivalent to the MSG Las Vegas Sphere – arose when the company submitted a planning application to the London Legacy Development Corporation, requesting to transform a site in Stratford.It was set to sit on a 1.9-hectare (4.7-acre) site in Stratford that was purchased by MSG.