The «Memoria del condotto di piombo fatto di nuovo a’ spese della Reverenda Congregazione
dell’Oratorio di Roma nell’anno corrente 1793». New elements for knowing the urban and building
transformation in the roman area of Vallicella from unpublished documents of eighteenth century
The architectural structure of Convento dei Filippini in Rome has recently been the subject of new
documentary investigation and digital measuring campaigns aimed at making a useful synthesis
of information from different sources. The two main objectives of these analyses are the extended
documentation of materials and techniques involved in the realization of the Convent and the knowledge
of his building process. The documents allow formulating a hypothesis about the identification of
the primary nucleus of the Convent. This nucleus can be considered a fragment of the pre-existing
urban texture, which was characterized by extensive transformations during the new construction,
and it affected for a long time the choices of architects involved in the building. The theme of the
metamorphosis of the urban texture is linked with a repertoire of unpublished documents relating
to the maintenances of the hydraulic implant of the Convent, which have been carried out in the
eighteenth century.