Cracks are visible on some of the chimneys and need to be rebuilt for safety reasons and to ensure they last, say the developers.
But campaigners say taking the chimneys down will ruin the character of the building.
A small group of people dressed as monkeys gathered outside the station today with placards claiming the company behind the development 'don't give two monkeys' for the iconic building.
More top news
Reverend Simon Harvey from Islington lost his wife Jennifer to a sudden illness nine weeks ago.
Drivers will be forced to charge reasonable fares under plans to ensure tourists are not targeted by drivers trying to take advantage.
Robbie is Britain's first official bionic hound, after having his back legs strengthened with a state-of-the-art exoskeleton.