The work involved rebuilding historically documented sections of masonry that had been destroyed in the ancient period, in order to restore the monument’s structural integrity or its morphological coherence, and make it ‘readable’.
Certain principles governed these small-scale interventions, which mainly concerned the central group of buildings. These were: that the surviving construction phase should be restored in accordance with the in situ data; that a lacuna should be completely rebuilt only when all the data survive; that the new sections should be marked off from the old by a joint of mortar all around (Venice Charter, articles 6 and 7).
The interventions fall into three categories.
1. Rebuilding to help the general public to understand the monument (north stoa, masonry of north wall)
2. Filling in lacunae to restore the monument’s morphological coherence (north stoa, masonry of south wall)
3. Rebuilding part of the masonry to restore structural integrity (north peristyle, north-east room, masonry of south wall).
