The trade union Unite has organised a protest in Knightsbridge to coincide with the first anniversary of the introduction of the "bedroom tax". Unite wants a vote to end the policy, which was meant to encourage council tenants to move into smaller properties if they were in houses with a spare room.
Opponents say it has left many tenants forced in to paying more for their current houses as there aren't enough smaller properties available for them to move into. The government has said the scheme is not a tax and instead refers to it as "the spare room subsidy".
More top news
Save Your Uber in London was set up after it was announced the firm would not have its licence renewed when it expires next week.
Survivors are still traumatised, homeless and want answers.
The number of overseas visitors to the UK topped four million in July for the first time, official figures show.