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Regio III - Insula XVIII - Horrea III,XVIII and buildings identified through geophysical research

This was a very large store building, between Via della Foce and the Cardo degli Aurighi. Only the east wall and part of the south wall have been excavated (red latericium from the Severan period, partition walls of mixtum that may be older). The walls were reinforced by brick buttresses.



Plan of the excavated part of the horrea. After SO I.



Detail of the characteristic red, Severan brickwork.
Photograph: Jan Theo Bakker.

The full extent of the building is known through geophysical research conducted by the German Archaeological Institute in Rome in 2000 (directed by M. Heinzelmann). Other buildings and structures that could identified in the west part of region III are:

  • Two small horrea to the west of Horrea III,XVIII (plan nr. 23).
    Built in the second century AD.
  • A market (nr. 25).
    The building has a trapezoidal plan (c. 40 x 60 metres). Shops surround a courtyard. The rooms were decorated with geometric black-and-white mosaics. Built in the early second century AD.
  • A gate in the city wall, at the west end of the Cardo degli Aurighi (nr. 28).
    At this point the city wall was reinforced in the third century, perhaps during the reign of Aurelianus.
  • A domus on top of the city wall (nr. 27).
    Built in the late first or early second century AD. A heated floor and marble decoration have been dated to the third century.
  • Two small houses to the south of the city wall (nr. 26).
    Built in the second half of the first and in the second century AD. Later the two buildings were joined.


  • The west part of regions I and III with new discoveries, resulting from the geophysical research
    by the German Archaeological Institute in Rome. Numbers indicate trenches. Plan: Michael Heinzelmann.

    [jthb - 17-May-2006]