Promulgation in the Official Gazette of the Tunisian Republic (no40 of 13 June 1989) of the decree (no577 dated 29 may 1989) listing the Ennejma Ezzahra Palace as a historical monument.
The decree imposes a set of restrictions on the property, prohibiting any modification to the external or internal architectural aspect of the palace or its decoration or any rearrangement of the gardens and renders maintenance and the conservation of the property in its original state mandatory.
The proposal to list the Palace was put forward by the municipality of Sidi Bou Said by letter of 3 June 1988 addressed to the National Art and Archaeology Institute (INAA, the present National Heritage Institute). The procedure was provided for by law no86-35 of 9 May 1986 relative to the protection of archaeological properties, historical monuments and urban natural sites. The application for listing was drawn up in August 1988 by the INAA in cooperation with the Association for the Conservation of the Medina of Tunis. The listing commission met on 9 September 1988. The property is located within a listed district (decree 85/1246 of 7 October 1985).