The slaughterhouse stands on an area of great archaeological interest. The building is in need of restoration work due to its condition. 
In particular, the following are evident:

• widespread degradation phenomena related to rising damp;
• cracks characterised by damage and partial detachment of material at the roof;
• widespread degradation phenomena due to dampness from infiltration;
• damage to the curtain and travertine cornices of the lunettes;
• widespread detachment of the internal finishing plaster layer and discolouration of internal and external finishes;
• degradation of cast iron structures due to runoff;
• degradation of the roof trusses.

Initial investigations for static and seismic assessment revealed that the metal roof trusses had visibly loosened their constituent elements, which were no longer tensioned.

 Within the overall framework of the restoration of the Ex-Mattatoio di Testaccio monumental complex, the project will have the following objectives: 

• to recover the original appearance of the pavilion as conceived by the architect. Gioacchino Ersoch;
• make evident the traces left by the transformations the pavilion has undergone over time; 
• reconcile the new requirements of functionality with the legibility of an industrial archaeology artefact of primary importance.