If you need a free PDF strictly for the diagrams, you can legally download the original 1936 version (public domain in some countries) or the 1970 English edition (sometimes available as a free scan on the Internet Archive). The dimensions are metric, so they match Italian standards. You then buy the Italian text for the regulations.
If you need the actual data and drawings (the "bible" for architects), you are looking for the Italian translation of the book, titled "L'arte di progettare" (formerly Architettura Pratica). neufert pdf italiano work
Where to find the PDF:
Italian architects are moving away from static PDFs. Tools like ArchiCAD and Revit have Neufert-based plugins (e.g., BIM Neufert) that embed the data directly into the modeling environment. Some Italian firms use "Neufert Box" – a Windows application that is a legal, searchable database. If you need a free PDF strictly for
While not a standard PDF, the ePUB version sold on Google Play Books for Italy is the closest legal alternative. You can read it on a tablet, highlight text, and use a search function. It costs approximately €50–€70. Where to find the PDF: Italian architects are