Why hasn't it been demolished?

A building can only be demolished if the owners want to demolish and have the necessary consent. Previous owners have had planning permission to convert the building, but these plans have not been implemented. The works that are now under way (Feb/March 2023) are being carried out under a ‘Permitted Development’ consent.  The Council can only demolish a building that it does not own and/or control, if it is an unsound structure. Tricorn House is not regarded as an unsound structure.