Robbie Williams and his wife Ayda Field chose the city and also Simon Cowell.
The scenario usually takes viewers to four different places, one for each judge.
But this time, almost all the footage will be filmed in the same place.
A connoisseur of the show said: "This is unusual for X Factor." Viewers are used to seeing contestants go around the world, but this time most of them will be in Los Angeles.
"It will not be so exciting to see it." But it will certainly make things easier for the production team. "
Simon, Robbie and Ayda agreed to film the heats in their own homes.
Our source added: "Filming the heats of the houses of three judges in the same city will certainly save money, but it is not happening due to budgetary problems." This is what worked best for the judges involved.
"Robbie and Ayda have two homes in Los Angeles, so they have one to shoot."
Meanwhile, Louis Tomlinson has chosen Barcelona for the warmth of their judges' houses.
The One Direction star spent weeks deciding where to take his contestants.
One source said: "Louis looked at both Barcelona and Dubai as potential places, and finally he went to Barcelona, it's an incredible city, so he's really excited."
The bosses were hoping to record one of the judges' dungeons in New Orleans.
Our source added: "The producers were confident that New Orleans would look amazing on the screen, they did everything possible to make it happen, but in the end it did not work because of a problem with the flights."
The judges' houses will be filmed in a few weeks and broadcast on television in the fall.
It is believed that the new panel is the most expensive in the history of the show, with an estimated cost of 20 million pounds sterling.
When it was announced that there was a mixed reaction from the fans.
The star of Loose Women, Ayda, faced a violent reaction because she has no experience as a singer.
But the sources of X Factor have affirmed that already it impressed so much to the fanatics as to the producers.
The auditions and the challenge of the six chairs have been filmed and it is said that she fell well.
One source said: "Ayda is likely to prove her critics wrong, she brought a completely new perspective to the panel."
X Factor has seen its ratings plummet in recent years.
Last fall he was beaten by the rival of the BBC every weekend.
But bosses are confident that Robbie on the panel will help increase audience numbers.
The new series is expected to air on the beginning of September.