Union Investment: committed to sustainability

Union Investment is one of Europe’s leading real estate investment managers specialising in open-ended real estate funds for private and institutional investors. Union Investment has assets under management of around 28.5 billion Euros in actively managed funds and 2.2 billion Euros in service mandates.


Union Investment is active in the real estate sector as an investor and also as an asset manager, with tenant management being a core function.

Step by step to a sustainable portfolio

Union Investment is firmly committed to expanding its investment in sustainable real estate. In pursuing such a policy, the company aims to fulfil its responsibility towards the environment and society. This philosophy also serves the interests of Union Investment's investors and tenants. Comfort and flexibility for occupiers are as much a priority as long-term value appreciation of all properties and of the overall real estate portfolio.


Union Investment has set ambitious objectives for its sustainability strategy. The company is the first German real estate fund provider to have properties certified for sustainability across all of its use classes – offices, retail, logistics, hotels and urban ensembles. Certified or pre-certified properties currently account for nearly three quarters (43 per cent) of the real estate portfolio.

Background and updates on sustainability

This portal is a core element of Union Investment's sustainability strategy. It aims to provide investors, property occupiers, service providers and other interested parties with in-depth background information on sustainability as a key megatrend. The information is updated regularly with reports on the latest trends and developments.  


Selected properties from the Union Investment real estate portfolio:

Commercial Center HafenCity

Certification: DGNB + HafenCity Ecolabel

Constructed: 2010

GFA: 15,001 sq m

Location: Großer Grasbrook 9, HafenCity, Hamburg, Germany

Use: Offices, retail, restaurants and cafés

CCC Hamburg – diverse sustainability in HafenCity

The Centurion Commercial Centre combines a wide range of solutions in a sustainable property. District heating and geothermal energy are used to heat and cool the building by means of concrete core activation. This significantly reduces CO2 emissions and also cuts operating costs for the school, offices, restaurants and shops compared to conventional heating and cooling systems. Room temperature and ventilation can be regulated separately for each office, bringing added convenience for users. Rainwater is used to flush the toilets and water the interior courtyards. The building received the HafenCity Ecolabel in gold and DGNB Gold certification for its exemplary sustainable construction. It was then subjected to intensive energy monitoring after it was commissioned. This enabled the technical installations to be managed and optimised precisely, allowing the consumption data calculated during the planning stage to be achieved in reality on a day-to-day basis with a diverse user structure.




Certification: LEED Gold
Constructed: 2011
GFA: 24,878 sq m
Location: Pfingstweidstrasse 51, Zurich, Switzerland
Use: Offices

An intelligent energy concept in central Zurich

Featuring some 20,600 square metres of space and parking for 88 cars, this office building is one of the most modern of its kind in Europe. It was constructed using environmentally friendly materials and has a façade predominantly made of glass, which floods the building with natural light even on overcast days. Blinds and solar shading prevent excessive heat build-up from sunlight. Heat generated by the cooling systems is used to provide hot water, thereby reducing heat energy requirements considerably. A groundwater heat pump exploits a free source of energy. The intelligent energy concept makes a substantial contribution to the low operating costs. The building is certified LEED-CS (Core and Shell) Gold under the 2009 rating system.




Certification: LEED CS Gold (pre-certified)
Constructed: 1961
GFA: 33,353 sq m
Location: Am Seestern 3, Düsseldorf, Germany
Use: Offices

Five star office space

The first building to be constructed on the Am Seestern site is also the number one address for companies that demand more: the SEESTERN 3 office/commercial building. It was the first building in Germany to be designed purely for open-plan office use and is thus of pioneering importance in office building architecture. The building was already setting new trends when it was completed back in 1961. Now the office space of the future has arrived, thanks to an ambitious refurbishment that was recently undertaken behind the listed façade. With state-of-the-art technology, an innovative layout and a contemporary energy concept, SEESTERN 3 is a building that will always be years ahead of its time. It also boosted its sustainability credentials by switching from gas to CO2-neutral district heating in 2015. Read more about SEESTERN 3 here.



Heddesheim, Multicube

Certification: DGNB Gold
Constructed: 2012
GFA: 160,199 sq m
Location: Multicube Rhein-Neckar, Daimlerstraße 4, Heddesheim, Germany
Use: Logistics, offices



Multi-user complex is an exemplary logistics building

The Multicube logistics building is a true pioneer when it comes to sustainability, which is why it received the first DGNB Gold certification for a newly constructed industrial facility in Europe. The award was presented in recognition of a range of factors, including the use of pollutant-free construction materials, excellent insulation, energy saving cooling, the re-use of waste heat from biogas-powered electricity generation and the ability to allow all rainwater falling on the building to percolate and be fed back into the water cycle. The building also demonstrates outstanding innovative flexibility. Its multi-user concept features a large column grid, forward-looking structural design of individual components and the consistent use of building materials with high fire protection requirements. These features ensure that the space can be used in a multitude of ways. The building is also unique in having the largest rooftop solar panel system in Europe, saving 5,000 tonnes of CO2 per year, and Europe’s biggest silent, pollutant-free cooling system using water.





Union Investment Real Estate GmbH

Union Investment Institutional Property GmbH


Valentinskamp 70 / EMPORIO

D-20355 Hamburg

Postfach 30 11 99

20304 Hamburg



Phone:+49 (0) 40 3 49 19 - 0
Fax:+49 (0) 40 3 49 19 - 4191