The building registry of Vienna in the late 1920s was a knowledge base for real estate and finance business. At this time, the registry was published on paper. The Wienbibliothek im Rathaus scanned the documents and distribute the Häuser-Kataster der Bundeshauptstadt Wien online in PDF format. We converted the PDFs into a machine-readable format. The dataset includes 42,861 data entries (rows), which stand for buildings and properties, respectively. It includes 12 data fields (columns) as followed: Eight data fields originate from the Häuser-Kataster der Bundeshauptstadt Wien with data records from the late 1920s: urban district number, street name, building number, position in a row of buildings, property area, number of floors, year of construction, year of purchase. Two data fields have been supplemented to facilitate geotagging. They include data records of the late 2010s: cadastral community number, street name. Two data fields have been supplemented to facilitate usability: identification number for each data entry, page number - which refers the the PDF page numbering of the Häuser-Kataster der Bundeshauptstadt Wien. This repository contains the following files: Dataset: The CSV file inlcudes the data records. Codebook: The markdown file specifies the dataset format, the data fields and comments the data fields to faciliate the use of the data records. Data descriptor: The folder includes the machine-readable Input dataset version 1 and 2 as described in the corresponding Data descriptor.