In 1918 writer Maurice Leblanc bought a historic villa in Étretat, which he wanted to use for living and working personally.
The museum opened in 1999 under its current name Le Clos Arsène Lupin, Maison Maurice Leblanc.
In 2011, the property and the fund of the collection were bought for €639,000 by the Haute-Normandie Region (45%), the Department of Seine-Maritime (45%) and the municipality of Étretat (10%) which include Clos Lupin in the Historic route of writers' houses.
In addition, the 'author' is haunted by his fictional character Arsène Lupin (in French, voiced by Georges Descrières, who portrayed him in the 1970s television series) during this audio-visual tour and an informative dialogue (radio play) develops between the two, in the course of which the museum visitor in particular learns the secret of the “L 'Aiguille creuse' (the Hollow needle).
The museum building is located on a closed garden plot with old pine trees, lupins, statues, a historic fountain and a pergola overgrown with wisteria.