The family could also receive tens of millions of dollars in "blood money" payments following the trial of Khashoggi's alleged killers in Riyadh. All told, the family could stand to collect more than $ 70 million in cash and assets, the estimated source.
The Saudi government would argue that these payments are intended to make amends, but the expectation is that, in exchange for the money, they will not publicly criticize the royal family over Khashoggi's death, the source said.
Khashoggi's four children have each been gifted houses worth as much as 15 million Saudi riyals (about $ 4 million), the source said. Salah, who as the eldest son handles the family's relations with the government, has been given a big home in Jeddah, where he works as a banker. His brother, Abdullah, and two sisters have been given houses together in a different compound.
In addition to the property, Khashoggi's four children each received a one-time payment of 1
The houses, one-off payments and monthly allowances were approved by Saudi King Salman, the source said.
Prosecutors are seeking a death penalty for five of the 11 operatives they say involved in Khashoggi's murder at the The Saudi consulate in Istanbul is 2 October.
If the men are convicted and sentenced to death, the Saudi justice system would allow Khashoggi's family to grant their The father's killers are clemency through the so-called "blood money" arrangement.
Blood money is a legal mechanism under the Sharia law, through which the accused pays a sum to the relatives of the victim to avoid death penalty. If, as expected, the men are unable to pay the amount required by the family, the government could step in to the bill.
The family could receive further payments of as much as 100 to 200 million rials ($ 26.7- $ 53.3 million) as part of the blood money negotiations that could be expected when the trial concludes, CNN's source said. According to source, this estimate is based on similar deals made in the past which involved Saudi government's payments.
The Saudi government did not respond to multiple requests for comment Tuesday.
So far, Khashoggi's children have not openly criticized the kingdom, despite the CIA's conclusion that Crown Prince Mohammed bin Salman ordered their father's murder.
Salah, a dual US-Saudi citizen, is the only Khashoggi sibling who plans to stay in the kingdom, according to CNN's source. Abdullah and his two sisters are still in the United States and have no intention of returning to live in the homes given to them in Saudi. CNN's source said they are not able to sell the houses and pocket the money either.
CNN has reached out to Salah and Abdullah Khashoggi for comment, but has not responded.
"I really hope that whatever happened was not painful for him, or it was quick. Or he had a peaceful death," Abdullah told CNN during a sit-in interview in Washington with Salah.
Asked how Khashoggi should be remembered, Salah replied, "as a moderate man who has common values with everyone … a man who loved his country, who believed so much in it and its potential."
Riyadh has maintained that neither bin Salman nor King Salman knew about the operation to target Khashoggi last October. US officials, however, have said such a mission – including 15 men sent from Riyadh – could not have been done without the authorization of bin Salman.
US President Donald Trump has come under pressure from Congress and others to hold Saudi Arabia accountable for the Khashoggi case. But Trump, an ally of the 33-year-old heir, has so far shown no interest in investigating allegations of bin Salman's involvement, saying, "Maybe he did, maybe he did not."
US sanctions have been imposed on 17 Saudi individuals, but not bin Salman.