Urban geographer Susanne Heeg examines the role and importance of calculative practices in the process of establishing a global property market. These practices have contributed to the transformation of the property market into a calculable relation, which makes it possible to perceive and assess the real estate market and its objects internationally. Comparability – which includes the transformation of social, political and economic conditions into numbers – has created the context in which investment decisions take place because they suggest transparency and calculability. These practices are created and shared in a network of global real estate professionals and go along with strategies of territorializing and delineating markets.