A London council today announced plans to launch legal action against the Government in an attempt to halt the High Speed 2 rail scheme.
Camden said the decision to go ahead with the £33 billion project from London to Birmingham was flawed.
It today served a formal "letter before claim" on Transport Secretary Justine Greening, signalling its intent to join rural campaigners in seeking a judicial review of the scheme.
The first section of the project's route will demolish a large part of the Regent's Park estate near Euston station, much of it social housing. Part of Drummond Street will also be knocked down.
The letter accuses ministers of failing to minimise disruption near the station and not guaranteeing advance funds to mitigate against the loss of housing and businesses.
Councillor Sarah Hayward said: "We are talking about people's homes and businesses, not golf courses."
