Chessington World of Adventures, UK is having a new drop ride built for the 2021 summer season.
Rising from the newly poured concrete foundation is the steel structure that will surround the drop tower. On the side, a breeze block wall is being formed to enclose the building, with the queue line entrance now visible at the front. Inside the new building, sectioned off rooms have been created which we assume will house the ride computers and operator’s console.
Source: https://www.southparks.co.uk/features/future-developments/drop-tower/