It is alleged that deputy intelligence chief Ahmed al-Assiri oversaw the murder while being advised by the royal court's media czar Saud al-Qahtani.
Agencies are probing is on if they arelinked to Saudi journalist Jamal Khashoggi's murder.
The houses given to the Khashoggi children are located in the port city of Jeddah and are worth up to $4 million.
A critic of the Saudi regime, Khashoggi was killed and dismembered October 2 in the Saudi consulate in Istanbul by a team of 15 agents sent from Riyadh. His body has never been recovered.
Saud al-Qahtani, Saudi Crown Prince Mohammed bin Salman's special aid, who was sacked over the Khasshogi's murder, is not among 11 suspects.
Al-Aiban spoke as the 47-member Human Rights Council conducted Thursday a regular review of Saudi Arabia's human rights record, a periodic process faced by all U.N.member states.
While Iceland expressed significant concerns" about reported abuses in Saudi Arabia, thirty-five other nations condemned the Middle-Eastern country for Khashoggi's death.
Prince Mohammed predicted "good things" will come out of talks with Indian leaders as he started a landmark visit to the world's largest democracy.
The first visit of Mohammed bin Salman, the Crown Prince of the Kingdom of Saudi Arabia who is better known as MbS, to India on February 19-20 is significant for several reasons.
Turkey has not revealed all about Saudi journalist Khashoggi killing: President Recep Tayyip Erdogan
'We haven't given all the elements we have at our disposal,' the Turkish head of state said during an interview with the A-Haber television channel.
Khashoggi, Washington Post contributor, was a fierce critic of Saudi Crown Prince Mohammed bin Salman, who denies any involvement in the murder.
The dissident journalist was dismembered after his murder October 2 in the Saudi consulate in Istanbul but his remains have yet to be found.
Saudi Arabia MOS (Foreign Affairs) Adel al-Jubeir said that it is ridiculous for anyone to dictate Saudi Arabia's leadership on what to do.
Khashoggi, a Washington Post columnist who wrote critically about Saudi Crown Prince Mohammed bin Salman, was killed and dismembered inside the Saudi Consulate in Istanbul last October.
Secretary of State Mike Pompeo raised Khashoggi's killing among other issues during a meeting Thursday with a Saudi minister.