Yes but please explain the acronyms.
The TCPA is the noose around our collective neck; The Town and Country Planning Act. The section referred to allows for adaptations that are not materially altering the scope/nature of design.
For example we have permission for Type A North Stand, we have reverted to Tpe B which is within the planning envelope. If we wanted to go back to a different design, e.g. a hybrid of Type A that does not materially alter within the planning consent, is permissible if applied under s.73. That is a possibility here.
Prime Time Villa put up that we've made a s.73 app.