On the ground floor are located the shop, cafeteria, two temporary exhibition rooms, workshops, warehouses and the Restoration and Quaternary Wildlife laboratories, as well as offices of the Prehistoric Research Service, while the Church has become the Hall.

The Prehistory Research Service (Servicio de Investigación Prehistórica, SIP) of the Diputación of Valencia and the Museum of Prehistory are founded in 1927 at the request of Isidro Ballester Tormo as a scientific institution dedicated to research, preserve and promote the archaeological heritage of Valencia.

Since its creation, the SIP developed an intense archaeological field work as in the Bastide de les Alcuses of Moixent, the Black Cave (Cova Negra) of Xàtiva, the Cova del Parpalló of Gandia or Tossal de Sant Miquel of Llíria.

The materials obtained from these excavations soon formed a collection whose scientific and heritage value has made the SIP and its museum one of the most important in Spain.

Initially it was planned with the "Archivo de Prehistoria Levantina" although due to economic difficulties, it took 16 years between publication of the first and the second volume, as a result, the bibliographic exchange was performed with the Annual Report.