vandalism"enabling demolition of the building to be scheduled. The tower was demolished between 00:00 and 00:20 on 19 September 2021 in a series of controlled explosions. References External links Companies based in County Durham Companies based in Middlesbrough British companies established in 1875 Companies formerly listed on the London Stock Exchange Construction and civil engineering companies of the United Kingdom Structural steel 1875 establishments in England Construction and civil engineering companies established in 1875 Engineering consulting firms of the United Kingdom