At the beginning of the 20th century, it became the private property of the Royal House, which thus intended to enlarge the adjacent Castelporziano Estate, loaned to the ruling family but owned by the Italian state.

After the end of the monarchy, the estate followed the fate of the private possessions of the House of Savoy and three-quarters of it became a property of the heirs of Victor Emmanuel III.

The dune area of Capocotta is of considerable environmental, but also anthropological and social interest: the beach is in fact recognized by the international naturist movement[6] and is a meeting point for the Roman LGBT community.

The Control Commission of the Litorale Romano State Natural Reserve of the Ministry of the Environment, on the invitation of the Italian Naturists Union ("Lazio" section), sent a request for clarification to the Municipality of Rome and the State Forestry Corps on the fact that some demolitions of illegal settlements on government land, already ordered since 1999, had not been carried out yet.

[8] The attention of environmentalists for this area of the coast is high as well: the problems deriving from anthropogenic pressure are added to those due to the erosion of the beach caused by swells, such as the ones of 2001, with 50 meters of "eaten" coastline and collapsed dunes,[9] and 2008, following which the Lazio Region allocated 24 million euros in 2009.