During the Second World War, when the King was in exile and Greeks suffered considerable hardships under German occupation, the woods at Tatoi were chopped down for fuel and corpses were buried in shallow graves.

It passed down as private property to King Constantine II until 1994, when the royal estates were confiscated by the government of Andreas Papandreou.

A former cowshed was filled with objects from Rododafni Castle, the mansion at Psychico, Mon Repos palace, and other royal residences.

[7] Founded in 2012, the "Friends of Tatoi Association" has set itself the goal to restore the former royal estate and convert it to a museum and public venue, while facing political indifference and lack of money.

[16] After approximately a year of conservation work had been undertaken, the Greek government announced that the estate would become a mixed-use development after the completion of restoration.

Plans are centered on the conversion of the main house into a museum of the royal family, as well as the construction of a new luxury hotel and spa.

[18] Following the death and funeral of Constantine II, it was announced by Lina Mendoni, the Minister of Culture and Sports, that the government intended to have Tatoi transformed into a museum by 2025.

Buried in the Tatoi Royal Cemetery are: A mausoleum was built to house the bodies of Constantine I, Sophia and Alexander, seen in the image above.

Princess Alexandra of Greece and Denmark, Queen of Yugoslavia (1921–1993) was buried here from 1993 until 2013, when her remains were exhumed and returned to Serbia, where they were reburied at Oplenac in 2013.