City of Vienna

Vienna is the federal capital, largest city and one of nine states of Austria. Vienna is Austria’s primate city, with a population of about 1.9 million. It is the 7th-largest city by population within city limits in the European Union. Until the beginning of the 20th century, it was the largest German-speaking city in the world, and before the splitting of the Austro-Hungarian Empire in World War I, the city had 2 million inhabitants. Today, it has the second largest number of German speakers after Berlin. Vienna is host to many major international organizations, including the United Nations and OPEC. The city is located in the eastern part of Austria and is close to the borders of the Czech Republic, Slovakia, and Hungary. These regions work together in a European Centrope border region. Along with nearby Bratislava, Vienna forms a metropolitan region with 3 million inhabitants. In 2001, the city centre was designated a UNESCO World Heritage Site. In July 2017 it was moved to the list of World Heritage in Danger.

Vienna is known for its high quality of life. In a 2005 study of 127 world cities, the Economist Intelligence Unit ranked the city first (in a tie with Vancouver and San Francisco) for the world’s most liveable cities. Between 2011 and 2015, Vienna was ranked second, behind Melbourne. In 2018, it replaced Melbourne as the number one spot.

Source: Wikipedia


City of Vienna is a member of Energy Cities since 2019


1 840 570 Inhabitants


Heritage-led regeneration to fall back in love with our historic centres

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“We need some really courageous goal setting. Cooperation helps.”

Julia Girardi-Hoog, City of Vienna Housing Department

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“Urban renewal is a very cooperative process, which has to be done together with the people.”

Interview with Stephan Hartmann, City of Vienna

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Citizens’ Solar Power Plant

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Smart city Vienna

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Innovative energy solutions for subsidized housing

A developpers competition for energy efficient timber buildings

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