Bailiffs will attempt to evict a traveller community from Dale Farm in Basildon at midnight on Wednesday if a last-ditch legal bid to prevent the move fails.
Basildon Council plans to remove the more than 240 residents following a decade long planning dispute. Approximately 50 per cent of the six-acre Dale Farm site has been developed without planning permission, according to the council.
A legal bid to halt the eviction was heard by a High Court judge at midday.
Lawyers acting for the Dale Farm residents will argue that the eviction should be delayed until the council finds "alternative, culturally-appropriate accommodation" for the families.
But if the attempt to get an injunction against the eviction fails, bailiffs will be legally allowed to enter the site from midnight.
The eviction and the accompanying police operation are expected to cost the council an estimated £18 million.
One woman who lives on the site told Sky News that violent resistance was a possibility if the eviction attempt goes ahead.
"Who's going to walk out of their homes peacefully?," she said. "We dont want violence, thats the last straw because we've got too many sick people, but if it [the eviction] happens it's going to happen."
Essex police said they would "continue to monitor the situation" at the farm.
Yesterday supporters of the Dale Farm residents received a boost when actress and political activist Vanessa Redgrave visited the site.
The Unicef goodwill ambassador said she believed the eviction of the families would be illegal under international human rights conventions. She said she was "appalled that such an eviction can be upheld by our government".
Joseph Jones, the secretary of the Gypsy Council, told The Huffington Post UK that the council had turned a planning dispute in to "an issue of race".
But Councillor Tony Ball, leader of Basildon Council, said those being evicted were being treated exactly the same way as any other citizen, and insisted the clearance had "absolutely nothing" to do with the travellers' "choice of lifestyle or background".
"The council has spent the last 10 years attempting to find a peaceful solution to the illegal site at Dale Farm. A forced clearance has always been a reluctant last resort for us, but the travellers have left us with little option after exhausting the legal process," he said.