The site has become the biggest in Basildon in terms of caravan numbers.
Travellers have transformed the small authorised caravan site, in the supposedly protected green belt near Basildon, into a huge makeshift housing estate without first obtaining all the required planning permission.
Basildon Council, spearheaded the £7million clearance of Dale Farm, in Crays Hill, Essex – dubbed Europe's biggest illegal traveller site – in October 2011.
It is currently in the High Court to clamp down on illegal developments at another site at Hovefields Avenue, off the A127 at Wickford, after it was illegally expanded.
But, the council appears to have taken a much softer stance against families living at the Cranfield Park Avenue site off the other side of the A127 at Bowers Gifford, and another site down the road, known as Harrow Road.
Cranfield Park Avenue is less than two miles as the crow flies from Dale Farm.
The council has been accused of turning a blind eye to the creeping illegal expansion of it and Harrow Road by neighbouring residents.
The site at Cranfield Park Avenue has permission for 32 caravans, but has more than 100.
A motorist, who lives in the area and regularly passes Cranfield Park Avenue, said: "It seems it's back to being one rule for them and another for us.
"The council may have grabbed the headlines dealing with Dale Farm, but they have let this site mushroom.
"If you look there are mobile homes just crammed next to each other – they can't meet fire regulations.
"I reckon after spending all that money on clearing Dale Farm the council must have a block on taking any more action because these guys are taking the micky."
Get Quotes on Home Insurance
Each plot has permission for one static and one touring caravan, but many have several crammed on.
Cranfield Park Avenue has permanent planning permission for just nine mobile home pitches, and a further seven have temporary permission until August 2020, making a total of 16.
There should be no more than two caravans – one static mobile home and a touring caravan – on each pitch at any one time – a total of 32 residences.
After an earlier planning appeal in 2006 a planning inspector said temporary permission would only be allowed for the seven pitches if the families paid £140,000 to improve the access road from the site onto the A127 dual carriageway because it was not safe, with the number of vehicles using it at the authorised levels.
But the safety improvements were never carried out.
Now, an investigation by Express.co.uk, which compared aerial images of the site taken in May to planning consents, found it currently has more than 100 residences, made up of a mixture of caravans, mobile homes, and brick-built bungalows.
Jam packed: A close-up of the eastern end of the site shows just how many mobile homes have gone in.
This is well over three times the permitted numbers, but there has been no action yet by the council.
And some of the pitches have up to eight mobile homes registered as being there on the council tax register.
The ballooning camp hit the headlines in April when traveller Hugh Doherty, 45, who lived there, was shot dead and his 35-year-old sister Esther Doherty was stabbed multiple times.
Levi Draper, 27, has been charged with murder and attempted murder, possession of a firearm with intent, possession of an offensive weapon and cannabis, in connection with the violence.
Hugh Doherty who was shot to death at Cranfield Park Avenue.
Harriet Crittendon, 25, is charged with the attempted murder of Ms Doherty and possession of a knife.
The camp also made national headlines in 2006, the year of the planning appeal, when it later emerged one of those fighting for planning permission was ex-Southend United striker Freddy Eastwood, who scored the winning goal against Manchester United in November that year.
He has since moved off the site.
Much of the illegal development has taken place to the eastern end of the camp.
Footballer Freddy Eastwood once lived at the controversial site.
A Google satellite image taken around three years ago shows this area as largely green agricultural land.
But, our new image shows more hardstandings have been laid and around 30 new mobile homes added in this area.
Just less than a mile east of Cranfield Park Avenue is the smaller Harrow Road traveller site which has permission for three mobile home pitches – six residences in total.
Aerial photographs commissioned by Express.co.uk show it now has nine pitches, with a total of 28 caravans and mobile homes – more than four times the number allowed.
A Google Earth view of the site from 2014 shows there were much viewer caravans to the eastern end.
The same area in May 2017 shows several static mobile homes have been added in the eastern end.
Express.co.uk discovered the council has systematically turned a blind eye to illegal development at the expanding Cranfield Park Avenue site.
The site houses a number of registered businesses, including a number of off-site landscaping, roofing and building firms.
There is even a mobile home refurbishment company operating on the site, despite business use there being banned under planning conditions.
In fact, the council only took action there when David Cooper, 63, one of the original travellers on the site, and wife Elvey Upton transformed an old barn, that had a residential use, into a fully fledged two-storey house without planning permission in 2010.
An earlier Google Earth image (left) of Harrow Road contrasts to the increased development seen now.
Compliance with the requirements of the notices has not been achieved and action to enforce them has not been pursued.
The couple complied with council orders to demolish it, but have since added four mobile homes and more caravans to the land – again without obtaining planning permission first.
Some residents are cynical that the council is purposely dragging its heels because the borough has been identified as an area that requires more traveller sites.
However, remarkably, it has failed to put together a ratified local development plan designating where new traveller sites would go for the past 11 years, so none is in place.
Unlike the Irish Travellers evicted from Dale Farm, who originated from Rathkeale in County Limerick, in the Republic of Ireland, many of those living at Cranfield Park Avenue are locally born English gipsies.
In fact, some of them moved onto Cranfield Park Avenue, after being forced out of their homes in the Dale Farm area by incoming Irish travellers who bought up their pitches.
Shocking images from the Dale Farm eviction Sat, March 4, 2017 1 of 28
A caravan burns at Dale Farm in Essex where supporters have clashed with bailiffs
Both Cranfield Park Avenue and Harrow Road began as completely illegal developments on fields in the green belt, from the 1990s, after travellers bought the land at just over their agricultural values.
But, after the council refused retrospective planning applications, the owners appealed to the Government Planning Inspectorate and were given permission provided they abided by strict conditions, which have now been flouted.
As far back as February 2015, the Basildon Echo reported on claims from residents that the council was not taking any action about the illegal expansion of four sites, including Harrow Road and Cranfield Park Avenue.
At the time a council spokesman said: "The council is aware that further development in breach of the existing notices and injunctions has occurred and that is the subject of an ongoing investigation which will lead action to enforce compliance.”
In July 2015, the council produced an extensive report on the site, which identified several historic and new planning breaches there.
The report exposed how the council had served four enforcement notices on different parts of the site for illegal buildings to be torn down.
Despite travellers ignoring the orders, the council did nothing.
In each case the report said: "Compliance with the requirements of the notices has not been achieved and action to enforce them has not been pursued."
The report also confirmed investigations into new suspected breaches were underway saying: "It has also been noted that other pitches within this area have been sub-divided and are pending investigation."
But, more than two years on it has failed to act.
A traveller living at the site, who would not be named, told Express.co.uk: "People up here are just trying to get on with their lives, but the council won't designate land for more sites because people are prejudiced, so we have to get on with it and provide for ourselves."
He said it was legal to make retrospective planning applications.
He added: "This isn't another Dale Farm, we don't cause any trouble. The shooting was a tragic one off incident."
Express.co.uk asked the council what the results of its investigations had been and why it had failed to take action over the site over so many years.
Despite having more than two weeks to respond, the council was unable to provide an explanation.
A council spokesman said: "The planning enforcement team are very stretched at the moment as I am sure you can understand.
"In terms of Cranfield Park Avenue I am still awaiting a response."