More than 20 families living in a block of flats are being forced out of their homes as the site's owners - the Metropolitan Police - look to sell the site.
Some living in the block of flats and four houses on the site in Connaught House face eviction by bailiffs on Monday next week.
The Metropolitan Police, who own the site, are looking to sell the land which was leased to Crown Housing Association.
Mohssen Elkholti, 39, has lived in his flat with his son for five years and faces the possibility of being made homeless next week.
He said: “The whole process has been very upsetting for everyone here. I’m angry at how we have been treated and they haven’t helped us enough.
"Some people have been able to find a new place but some don't know what will happen and where they will be staying come Monday."
Some of those who face evection on Monday will be made homeless and forced to move into temporary bed and breakfast accommodation.
Mother Tracy Wiskin, whose family is being moved out, said: “We’ve been here for 11 years, but some people have lived here for 20 years and it’s just devastating to be forced out.
“There is a real little community here and it’s such as shame we will all be split up.
“A lot of us are in limbo at the moment. We just don’t know where we are going to be next week and we have now security. It’s so upsetting.”
Members of the Occupy movement, who protested outside St Paul’s Cathedral, have set up camp on the site to help tenants fight the move.
Some have gone to court with tenants to try to get extensions to their lease.
Crown Housing Association chief executive Nick Wood said: “We leased the property from the police for a number of years but we were informed in 2012 they would not be extending the lease.
“We have been trying to help all the residents find new housing. I know some families have had trouble finding new homes and we have sympathy for their situation and we will still try to help them.”
A spokesman for the Metropolitan Police said: “The land had been leased to Crown Housing Association to provide non-permanent accommodation for their own tenants who hold short-term leases. The lease to Crown Housing Association expired in December 2012.
“We continue to work closely with Crown Housing Association regarding arrangements with current occupiers before we proceed to market.”