Lambeth Council is taking the government to court over laws that make it easier for developers to turn offices into homes.
The relaxed planning regulations are meant to ease pressure on the housing market. But councillors claim businesses and jobs will suffer as office space begins to disappear.
Ria Chatterjee reports:
More top news
Reclaim the Power stage a protest at Heathrow against a new runway or further airport expansion.
Eight more people were hurt in the collision.
Police are hunting a man who is suspected of grabbing an 11-year-old girl who only got away by biting her attacker's hand.