MILLENNIUM CITY shopping centre awarded alongside WIEN MITTE The Mall.

One of the world’s most widely recognised sustainable building certifications is that of the German Sustainable Building Council (DGNB). The DGNB’s “Buildings in operation” system (version GiB2020) focuses on all the issues relevant to sustainable building operation and long-term value retention in nine criteria.

The basic structure of the DGNB “Buildings in Operation” system is based on the well-known three-pillar model of sustainability and divides the essential aspects of sustainable building operation into the topics of ecological quality, economic quality and socio-cultural and functional quality.

It is designed as a transformation and management tool to help building operators, portfolio owners and occupiers develop a sustainable, future-proof and climate-focused real estate strategy.

By systematically taking into account all relevant information about the building and its actual characteristics, the usage situation and the actual consumption parameters, the system helps to create transparency and identify optimisation potential. This minimises risk and increases investment security.

The certification can be applied to entire portfolios or individual buildings, regardless of their use.


The MILLENNIUM CITY shopping centre in Vienna’s 20th district, managed by CC Real, is the second property to be awarded PLATINUM certification – the highest possible certification – by the DGNB’s cooperation partner, the Austrian Sustainable Building Council (ÖGNI).

The DGNB’s PLATINUM status is only awarded to projects that can demonstrate an overall performance of at least 80%.

The “MILLENNIUM CITY” shopping centre achieved an overall performance of 82.6%.

In the run-up to the audit phase, the CC Real team relied on the support and expertise of external contractors to optimise and improve the areas of energy and water consumption, waste generation, pollution and environmental impact, accessibility and mobility through numerous detailed assessments and the creation of corresponding concepts. This set the course for a sustainable and forward-looking overall approach.

“Our property has a fully equipped metering, measuring and monitoring system to record the consumption of electricity, heat, cooling and water. Based on this system, energy optimisation measures can be analysed and implemented accordingly,” explains Jürgen Haussecker, Managing Director of CC Real and responsible for facility management.

“DGNB Platinum certification is the reward for our intensive efforts to achieve greater sustainability in all areas of the shopping centre. We hope that other centres will follow our example, because the demand from investors, tenants and customers shows that sustainable buildings are becoming increasingly important,” says Matthias Franta, centre manager of MILLENNIUM CITY.

CC Real GNDB Certificate reception. Participants Roland Pinz, Jurgen Haussecker and Mathias Franta