The building is located at the northeast of the Early-Christian Necropolis complex, between the Tobacco Factory and Ramón y Cajal Avenue. It is built on a concrete platform that also contains the remains of a mausoleum belonging to the archaeological site of the Necropolis.

It is the central services headquarters for the National Archaeological Museum of Tarragona and contains the basic infrastructure needed to carry out the research and conservation work of the Museum as well as the distribution of information.

It covers an area of 310 square metres with four floors and a total floor space of 1,300 square metres. The two lower floors house the storage space, the workshop for cleaning, classifying and marking archaeological material and a strongroom. The third floor, at street level, is made up of the Reception, Conference Room, Library and Researchers' Room. The fourth floor houses the Museum's technical and administrative services: the Restoration Workshop, Drawing Office, Photographic Studio and Laboratory, Documentation and Archives, Administration, Conservation, Secretariat and Management.