MONUMENTA has included in its actions the location, collection and rescue of archival material concerning the buildings of the 19th and 20th century. The collection of archives mainly concerns scanned files and files donated to MONUMENTA.

In 2021, MONUMENTA began the program «Recording, conservation and digitisation of the “Ergoliptiki” Archive», which is actualised in collaboration with the National Library of Greece and is granted by the Stavros Niarchos Foundation (SNF)