BREEAM
Immorent Singidunum receives BREEAM certificate for environmental construction solutions
The modern project development vision and the most advanced architectural and design solutions applied in the Sirius Offices project were judged outstanding, with an Excellent rating on the BREEAM certificate, which was awarded to the project investor - Immorent Singidunum, a member of Austrian Erste Group. This recognition is based on meeting a wide range of environmental criteria and assessing the impact of construction solutions on the environment, according to the globally famous and recognized method of real estate certification – BRE Environmental Assessment Method (BREEAM).
“The interior of the Sirius Offices complex is designed in accordance with a modern approach to business, which is rapidly changing and adapting to staff needs, but essentially reflects the orientation of Erste Group members towards the values of socially and environmentally responsible business. It is a pleasure to receive a recognition that confirms the importance of a sustainable business vision and motivates us to set even more ambitious goals for the future”, said Wolfgang Hausner, CEO of Erste Group Immorent GmbH, on the occasion of receiving the BREEAM certificate.
All of the buildings in the complex are built in accordance with BREEAM standards, in order to provide ideal working conditions and optimize user costs, while respecting strict energy efficiency requirements. This also implies minimized energy consumption for heating and cooling, and the use of renewable and recycled materials.



BREEAM Certificate
What is Sirius?
Sirius is made up of two Class A office buildings, Sirius A and Sirius B, connected by a joint underground garage.
- Plot area: 9.237 m2
- Number of floors above ground: GF + 8
- Above ground gross area (GFA): 30.801 m2
- Number of underground levels: 2 (UG garage)
- Number of parking spaces: 388
Explore Sirius
The guiding idea behind the project is the focus on sustainability. Both buildings meet the highest ecological standards and clerverly provide an ideal working and leisure environment.
Sirius far exceeds the average market standards, thereby enabling tenants to take full advantage of benefits such as:
- Outstanding working environment
- Efficiency and flexibility due to smart floor layouts
- More comfort as a result of new building technology
- Optimized operating costs
- Prime location in the heart of Belgrade business district
- Excellent traffic connections
Sirius and Milutin Milankovic
Sirius is named after the brightest star in the night sky. The name “Sirius” is derived from the ancient Greek: -Sirius (“glowing” or “scorcher”). What the naked eye perceives as a single star is actually a binary (double) star system – similar to the office buildings Sirius A and Sirius B.
Sirius is located on the street that was named after Milutin Milankovic, a renowned Serbian scientist whose major contribution to science dealt with the climates of all the planets in the solar systems and the cyclical changes of the Earth’s position relative to the Sun. It’s therefore appropriate to pay additional tribute to him by naming our Project “Sirius”.