Restoration of the east side of the monument, which had suffered very serious damage because of the earthquake of 1981, was carried out between 1984 and 1991. The proposal, based on the study by M. Korres, was to dismantle the corners of the pediment and the corresponding entablature. In the course of the work, however, previously invisible breaks in the architectural members were discovered, which led to the extension of the works to include the entire pediment together with the horizontal cornice, the Doric frieze and the capital and uppermost drum of the 7th from the north column. The intervention was extended also to include the first metopes of the north side and the underlying cornice. Removal of the architectural members was followed by their structural restoration and they were then reset in their original positions. It was decided that it was necessary to replace the original metopes with copies in artificial stone.
In February 1992 work began on the restoration of the 5th column from the east in the south colonnade. The column had been damaged during the explosion of 1687, with the result that it had shifted and was inclined toward the south. Since the problem lay in the first drum, the column from the second drum up had to be removed as a whole, so that the continuity of the intermediate drums would be undisturbed. The intervention was carried out using an improvised mechanism for clasping and transporting that was designed by M. Korres and K. Zambas. The column was moved all in one piece and placed temporarily in the interior of the temple, while the first drum was being restored. The intervention was completed in July 1993.
Restoration of the pronaos of the Parthenon was carried out between the years 1995 and 2004, on the basis of the approved study of M. Korres. The proposal was for partial restoration of the first three columns from the north and the complete restoration of the fourth and fifth columns. Structural restoration was carried out on the members of the second, third, fourth and fifth columns from the north and on the preserved architrave blocks of the 4th and 5th intercolumniations. The sixth from the north column was dismantled down to the level of the second drum and was completely reassembled after its members were structurally restored. Relevant studies were carried out by the civil engineer M. Mentzini. Structural restoration were carried out by the civil engineers K. Zamba and M. Mentzini. All the new supplements were given an artificial patina so as to lessen the contrast between ancient and new marble. It remains to carve the fluting of the new marble pieces in the columns and to reset the architrave between the porch and the SE anta.
The programme for restoring the opisthonaos began in 1992, on the basis of the relevant study by P. Kouphopoulos, who was in addition the technical advisor for the work. The programme was implemented in two stages and completed in 2004. While the work proceeded, supplementary implementation studies were made by the architect P. Christodoulopoulou and studies for the structural restoration of the architectural members were made by the civil engineer E. Toumbakari. The first phase of the programme comprised the dismantling of the roof beams of the colonnade, the crown blocks of the west porch, and the west frieze blocks, which were taken to the Acropolis Museum in 1993. The second phase of the programme began in 2001 with the dismantling of the remaining members of the entablature of the west porch, a number of column capitals and top column drums. After all the members had been restored and some had been reassembled from ancient fragments, they were reset in the summer of 2004. The blocks of the west frieze that had been removed from the monument were replaced by copies cast in artificial stone. Consolidation of those columns that had never been dismantled in the past was carried out in situ, with special injections, in order to retain their authentic structure intact. This was done on the basis of the study by the civil engineer A. Miltiadou.
The restoration of the north colonnade of the temple began in October 2001. The approved study (initial study by K. Zambas, definitive study and implementation study by L. Lambrinou and R. Christodoulopoulou) stipulated the dismantling of eight columns (from the 4th to the 11th from the east) and the corresponding parts of the entablature above, the replacement of the concrete supplements of the previous intervention with supplements of new marble, the resetting in the monument of all identifiable ancient pieces, the replacement of existing clamps and dowels with corresponding ones of titanium and the anastelosis of the architectural members in their original positions so as to correct the earlier misplacements and transpositions. The structural restoration of the architectural members is being carried out on the basis of the relevant studies by the civil engineer M. Mentzini, and also by the engineers Ch. Kyparissi, E.E. Toumbakari and A. Vrouva. Much of this work has now been finished and the project is continuing at a good pace. In 2007 the programme was expanded to include the dismantling of the 7 ancient metopes that were still in situ and the conservation - restoration of the members of the west part of the entablature of the north peristyle (study by P. Chistodoulopoulou).
Completion of the intervention gave to the monument both structural strength and aesthetic wholeness, since the north side and the west side of the Parthenon together provide one of the most complete views of the temple, both for the visitor to the sacred rock and from most points of the city.