Planning inspector’s report said ‘highly unsustainable’ attraction could become obsolete if other towers block its views

Ministers’ decision to reject Foster & Partners’ Tulip partly on the grounds of its “highly unsustainable” use of concrete may have set a “game-changing” precedent, according to architects, planners and lawyers.

Other major projects are now likely to be given a much harder ride at planning with their sustainability credentials set to come under significant scrutiny.

In a that was backed by Michael Gove and his housing minister Christopher Pincher, planning inspector David Nicholson noted that the Tulip would require the demolition of an office building less than 20 years old. The scheme replacing it would not be carbon neutral and would not achieve zero-carbon on site, although he acknowledged the designers had gone to “enormous lengths” to make its construction and operation