Taking ­respon­si­bi­li­ty

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W2005 B9815 Low Res

Cities and their inhabitants are the main causes of global environmental change: 70 percent of global CO2 emissions and 80 percent of energy demand are generated in urban areas. Answers to the global sustainability question must therefore be found in cities. And the property industry plays a significant role in this. We make an active contribution on the journey towards a sustainable, resilient environment that is worth living in.

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As a property developer and investment manager, the responsible use of resources is of utmost importance to us. We have set ourselves important sustainability goals in ethical, social, ecological and corporate terms. We focus on three areas here: Environment, Social and Governance (ESG). These ESG criteria are firmly embedded in our corporate culture and form the basis for corporate governance aligned with strong values.

  • CO2 air miles com­pen­sa­ti­on in t (2019)

  • CO2 savings through con­ver­si­on to green ener­gy (20202023) in t

  • %

    pro­por­ti­on of women at Quantum

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ESG Sco­ring

We want to make future viability measurable: In order to be able to reliably analyse social and ecological criteria of a property, we have developed Quantum ESG Scoring. This enables us to systematically consider criteria such as CO2 emissions, resource conservation, housing quality, sustainable mobility, a social housing mix or social tenant management when making investment decisions. We can therefore evaluate opportunities and risks on a property-specific basis.

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Modern and healt­hy working environments

Sustainable, healthy office environments are part of a sustainable property economy. New information and communication strategies make it possible to work across spatial boundaries, and flexible office concepts are becoming more and more important. We support mobile working and the smart office concept to reduce the environmental impact and achieve higher energy efficiency, and focus on holistic building concepts for a healthy working environment. Not least, the urban environment with its diversity of facilities and broad mix of uses also plays an important role.

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Social housing

For us, a focus on sustainable property management also means social and demand-led housing provision. In our investments and developments, for example, we pay attention to flexible and accessible building structures and a balanced mix of housing in an environment characterised by a variety of uses. Ensuring affordable housing and social tenant management are just as much a part of social housing provision as housing solutions for single-person households, families, older people or people with special needs.

Wood Photo by Caroline Grondin on Unsplash


The Quantum Sustainability Policy

The Quantum Sustainability Policy is our commitment to sustainable and responsible corporate governance.

Quantum Sustainability Report 2019

In the Quantum Sustainability Report, we report on our sustainability measures and achievements in 2019.

Angaben zu unternehmensbezogenen Offenlegungspflichten

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The following projects are regularly supported by Quantum:

Freundeskreis Kinderklinik
Kinderklinik Altona
Förderkreis Deichtorhallen
Licht-Kunst-Speicherstadt e.V.
Hamburgische Kulturstiftung


We are members of national and international industry associations and federations that promote sustainability in the property industry. We are supported by specialised consultancies in certifications and life cycle assessments as well as in the assessment according to the Global Real Estate Sustainability Benchmark (GRESB).


C2C (Cradle-to-Cradle)

The principle of "Cradle-to-Cradle" (C2C) stands for a sustainable economic principle in which all raw materials are recycled again at the end of their life and waste is not produced in the first place. The aim is to preserve the material quality and avoid downcycling with a loss of quality. A distinction is made between the circulation of biological and technical cycles. Biodegradable products are returned to the nutrient cycle; unmixed, separable products are returned to the technical cycle. The implementation of C2C in the property sector focuses on the recovery of materials, the use of renewable energies and the promotion of diversity. The C2C building serves as a raw material depot and has a positive ecological footprint.

German Sustainability Code (DNK)

The German Sustainability Code (DNK) is aimed at companies and organisations. The transparency standard describes sustainability performance in 20 criteria and in a selection of quantifiable performance indicators in a comprehensible and comparable form, the so-called DNK Declaration. They can be used to assess how companies anchor sustainability in their core business. Opportunities and risks are made visible and can be managed proactively.


The abbreviation "ESG" stands for Environment, Social and Governance and has become the most popular definition of sustainability in the field of sustainable investments. The three levels or dimensions of sustainability are intended to paint a comprehensive picture - because "sustainable" does not only refer to our environment, the reduction of emissions and a responsible use of natural resources. Equally important are good relations with employees, business partners and customers, and also a commitment to civil society and equal opportunities.

GRESB (Global Real Estate Sustainability Benchmark)

The international rating system GRESB (Global Real Estate Sustainability Benchmark) evaluates the sustainability performance of property investments and property companies. The GRESB score is calculated on the basis of differently weighted indicators from the environmental, social and governance (ESG) areas, which enables a direct comparison with the market environment. In this way, the standardised benchmark contributes to transparency and guidance within the sector, so that sustainable property investments can be compared across portfolios and over time.

GRI (Global Reporting Initiative)

The Global Reporting Initiative (GRI) is an ongoing international dialogue on corporate reporting in which companies and their stakeholders participate. The GRI develops guidelines with the aim of increasing the quality of reporting, standardising it and thus making it more comparable. A selection of GRI performance indicators complements the reporting of the DNK.

SDG (Sustainable Development Goals)

The 17 development goals of the 2030 Agenda for Sustainable Development link the principle of sustainability with economic, ecological and social development. The goal system of the 2030 Agenda is universal and applies equally to developing, emerging and industrialised countries. The new Agenda is intended to provide the basis for a transformed global partnership. The Development Goals were adopted by the United Nations (UN) General Assembly and have been in force since 1 January 2016 for a period of 15 years (until 2030).

Stranded Asset

Gestrandete Vermögenswerte (sog. „Stranded Assets“) sind Vermögenswerte (z.B. Immobilien), deren Marktwert rapide bis hin zu einer weitgehenden Wertlosigkeit sinkt. Die Ursache für das „Stranden“ eines Objektes können funktionaler, physischer, technischer, ökologischer oder wirtschaftlicher Natur sein. Das Risiko des „Strandens“ (sog. „Stranding Risk“) wird aktuell vor allem vor dem Hintergrund des Klimawandels diskutiert. Es beschreibt das Ausfallrisiko der Immobilie aufgrund einer Non-Konformität mit dem Pariser Klimaschutzabkommen. Maßgebliche Kenngrößen im Rahmen einer klimaschutzbezogenen Stranding-Risk-Analyse sind die CO2-Emissionen und der Energieverbrauch. Um nicht zu stranden, müssen Gebäude bzw. die technischen Komponenten im Laufe ihrer Lebenszyklen ggf. energetisch optimiert werden.

Auch wir ermitteln den potenziellen Zeitpunkt des „Strandens“ bei Ankäufen im Rahmen der ESG DD. Für unsere Bestände erfolgt die Ermittlung als Bestandteil des laufenden Portfolioscreenings.


Die Taxonomie ist ein Klassifizierungssystem für ökologisch nachhaltige Aktivitäten von Unternehmen. Sie bewertet einzelne Geschäftszweige bzw. Tätigkeiten, nicht das Unternehmen als Ganzes. Die Taxonomie deckt sechs Ziele ab:

  1. Klimaschutz
  2. Anpassung an den Klimawandel
  3. Nachhaltige Nutzung und Schutz von Wasser- und Meeresressourcen
  4. Übergang zu einer Kreislaufwirtschaft, Abfallvermeidung und Recycling
  5. Vermeidung und Verminderung von Umweltverschmutzung
  6. Schutz gesunder Ökosysteme

Ein Geschäftszweig gilt nur dann als ökologisch nachhaltig, wenn er zu einem der sechs Ziele beiträgt und keines der anderen Ziele schädigt (Do No Significant Harm-Regel). Die Taxonomie gilt grundsätzlich für alle Fonds. Die Anwendung ist jedoch freiwillig, sofern die Investments nicht ausdrücklich als nachhaltig ausgewiesen werden. Nachhaltige Fonds (nach Art. 8 und 9 der Offenlegungs-VO) müssen zukünftig den Anteil von Investitionen nach den Kriterien der Taxonomie ausweisen. Die technischen Kriterien für die ersten beiden Ziele treten ab 2022, die zu den vier weiteren Zielen ab 2023 in Kraft.

Fonds, die nicht als nachhaltig gelten, müssen lediglich darüber informieren, dass sie nicht im Einklang mit der Taxonomie investieren.

UN Global Compact

The UN Global Compact is a United Nations initiative for companies that commit to aligning their business operations with ten principles of sustainability. These include human rights, labour standards, environmental protection and anti-corruption. Participating companies report regularly on the implementation of the ten principles in the "Communication on Progress (COP)", e.g. in the company's annual report.

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If you have any questions or suggestions, please contact the Quantum sustainability team at