Aim and Research Questions

The aim of the research project is to capture and explain the spatial patterns of this transformation during 2007–2019. It furthermore wishes to explore the profiles of the actors involved in the change. This will not only provide a better comprehension of current developments in the Gründerzeit segment of the property market, but also contribute to current international debates over gentrification and financialisation on urban residential markets. The project represents a first-ever attempt at identifying the hotspots of transformation on the Viennese residential market according to quantitative criteria. It will thus also attempt to determine whether gentrification is taking place in Vienna, and if it were the case, it will provide insight into its local forms and structures.

We have thus identified the following research questions:

  • What pattern does the transformation of the Gründerzeit housing stock follow in Vienna? Which factors may be responsible for this dynamics?

  • Who are the actors (developers, international investors, banks, construction firms) behind this transformation?

  • What are the implications of this transformation for the social structure of neighbourhoods particularly affected by this process? 


We address the research questions by means of different quantitative and qualitative methods. Using publicly accessible data on the building stock of Vienna as a point of departure, along with land register entries and on-site surveys, we are able to locate the Zinshäuser concerned and identify the dynamics of change. Socio-spatial data serves to interpret the spatial transformation processes in a next step of our research. This forms the basis for qualitative surveys on site, which will improve our understanding of the transformation processes and their effects on the respective neighbourhoods.

A Zinshaus can be defined as follows: It is a residential building that was constructed before 1919, that contains more than two apartments and has not undergone a legal conversion (i.e. renewed, sub-divided, and re-sold).  The “disappearance” of these buildings – either through demolition or through legal conversion – is the central indicator for the transformation of the building stock from the Gründerzeit.

First results


Data protection information (Art 14 GDPR)

In the course of the project "Wiener Zinshausmarkt: Die Transformation des gründerzeitlichen Baubestandes" (Vienna Zinshaus market: the transformation of the Gründerzeit building stock), the register of persons of the land register is also inspected and the data deposited there is processed for scientific research purposes. The aim of the research project is to record and explain the spatial patterns of transformation in the period between 2007 and 2019, as well as to investigate the actor structures driving this change. In the context of the research question, ownership structures will be analyzed, among others. The aggregated results will be published scientifically.

The legal basis for the processing of personal data of owners is the legitimate interest of the ÖAW in scientific research (Art 6 (1) e, f GDPR, § 7 section 1 Z 2 DSG, § 2d section 5 FOG iVm Art 5 section 1 lit e and Art 89 section 1 GDPR).

The ÖAW stores the raw data for 10 years to prove compliance with good scientific practice, the research results in aggregated form are published and stored indefinitely.

Owners have the right of access to personal data concerning them, as well as the right to rectification or erasure or to restriction of processing, the right to object to processing, and the right to data portability. In addition, you have the right to lodge a complaint with the Austrian Data Protection Authority (; e-mail: or with a competent supervisory authority in another EU member state. The ÖAW data protection officers can be reached at or further information on data protection can be found at

If data subjects wish to exercise any of the aforementioned rights, please contact: Austrian Academy of Sciences (ÖAW), Institute for Urban and Regional Research, Bäckerstraße 13, 1010 Vienna, phone +43 1 51581-3520, e-mail:



Project partners

HuB Architekten ZT GmbH

DI Florian Brand

DI Johannes Huemer


May 2019–August 2021