A London Assembly meeting was briefly interrupted today by a number of housing protest groups outside.
The campaigners are angry that Boris Johnson's draft budget does not include more funding for affordable housing.
The singing protesters briefly made their way into City Hall, where Johnson was being questioned.
Lewis Bassett, from the Radical Housing Network, said protesters had gathered from more than 24 different grassrioot protest groups that have popped up across the capital focused on housing. He told ITV News London: