Boris Johnson wants the power to tax and spend like Scotland and Wales.
He's also asking the government to let the capital keep more of the money it raises -- rather than share it with the rest of the country.
He says the current system is "simply not fit for purpose" given London's size and stature.Our Political Correspondent Simon Harris reports
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The plaque at number 16 Cowley Street in Westminster marks the brown brick Georgian townhouse where Sir John lived for 31 years.
A man reportedly armed with several knives has been arrested in Whitehall on suspicion of planning a terror attack, police have said.
Metropolitan Police officer, Tom Harrison, has been crawling the course since the race began on Sunday morning.