Taking ­respon­si­bi­li­ty

W2005 B9815 Low Res
W2005 B9815 Low Res

Global issues are decided in cities and urban areas: Climate change, social justice, healthy living and work of the future. The real estate industry plays an important role in answering these questions. Our goal is to actively contribute to a sustainable, resilient, and liveable city. As we can only be successful in the long term in a stable economic environment if we pay attention to the overall well-being of the environment and the people.

W1705 B8507

As a developer and investment manager, we are committed to treating people and resources responsibly. We have set ourselves important sustainability goals in ethical, social, environmental and economic terms. We focus on three areas: Environmental, Social and Governance (ESG). These ESG criteria are firmly embedded in our culture and form the basis of our values-based corporate governance.

  • Bees live into the Ham­burg City Park (2021)

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

  • +

    Cri­te­ria within the Quan­tum ESG Scoring (depen­ding on type of use)

ESG tar­gets and measures


Acquisition of sustainable properties:

Quantum ESG Scoring

ESG Due Diligence

Sustainable funds:

Classification of existing funds as Art. 8 funds

GRESB rating

Portfolio screening and °C numbers as a decisive KPI (right°)

Digital ESG monitoring and management

Sustainable asset management:

Individual ESG strategy for each property

Green energy for community spaces

Sustainable disposal management and smart metering

Green clauses in rental and property management contracts

Tenant surveys


Development of sustainable buildings:

Sustainability standards and certifications

Quantum ESG scoring for residential and office

Green Lease

Focus on brownfield developments and conversions

Use of sustainable materials:

Building Material Passport

Alternative building materials

Innovative and holistic approaches:

Climate indicators for real estate (right°)

New living and working environments

Portfolio development instead of building new

People & Culture

Responsible corporate governance:

Annual sustainability reports

Implementation of the PRI (Principles for Responsible Investment)

Equal opportunities and equal rights

Sustainable working environment:

Green energy for all branches

Sustainable disposal management and resource conservation

Health promotion

Occupational safety

Employee empowerment:

Internal ESG team

ESG workshops and training programmes

Corporate communications:

Publications on the topic of sustainability

Content on website and social media


QSHI Wachstum

ESG Seal copy

ESG Scoring

We make sustainability measurable: with our Quantum ESG Scoring, we continuously analyse the environmental and social criteria of our properties. We consider criteria such as energy efficiency, CO2 emissions, resource conservation, health and well-being, social cohesion and social tenant management in developments, investment decisions and asset management.

Soziale Wohnraum breit

Social Impact Code

For us, a sustainable real estate industry should also take into account social aspects and demand-driven housing supply. The Quantum Social Impact Code focuses on five social objectives - affordable and decent housing, stable neighbourhoods, social participation and a healthy living environment. In this way, we not only add value for the tenants of our properties, but also create an environment that is worth living in for everyone. Socially sustainable investment and development ensures the future viability and value of our properties and in addition contributes to the United Nations Sustainable Development Goals.

Sustain 07 2x


Quantum supports the following projects on a regular basis:

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


Quantum Sustainability Report 2022

Table of Content

The Quantum Sustainability Policy

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


We are members of national and international industry associations and federations that promote sustainability in the real estate industry. Specialist consultancies support us in our sustainability projects.

Sustain 8 2x


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