Think he's alluding to this, for the reason it will be called in. I think if I remember rightly, they can over rule it if the project is deemed more beneficial to the wider area, which I think we can agree it is, as opposed to having an unused dock.
That may be what takes the 3 months though.
"However, even with the charm offensive from Mr Anderson, heritage body Historic England, dubbed “Hysteric England” by one business leader, is pushing to have Everton’s plan to build a 52,000-seat arena at Bramley Moore Dock in the city’s northern docklands ‘called in’ by the Secretary of State.
Despite Everton making changes to the stadium design after months of negotiations, the heritage body is still not happy and is recommending the Secretary of State refuse the plan, unless its demands are met.
It’s main issue is the plan to infill the Grade II-listed Bramley Moore Dock, within property giant Peel’s Liverpool Waters scheme, which was still used as a working dock until last year. It said: “The loss of the water would result in substantial harm to the significance of Bramley-Moore Dock and cause harm to the World Heritage Site.”