Sustainability
HIAG's aspiration is to be one of the pioneers in the industry in the area of sustainability. Its activities are intended to achieve positive ecological, economic and social effects along the entire value chain.
Key sustainability figures
In 2025, the PV systems and hydropower plants on HIAG's sites generated a total of 13.7 GWh of green electricity.
HIAG's greenhouse gas emissions in 2025 amounted to: Scope 1 - 1,447 t CO2e, Scope 2 - 395 t CO2e and Scope 3 - 34,173 t CO2e.
As at 31.12.2025, 38% of debt financing was attributable to green or sustainable instruments.
In 2025, 46% of the energy used by HIAG to operate the portfolio came from renewable sources.
As at 31.12.2025, 24% of the existing portfolio had been awarded a sustainability certificate.
On 31.12.2025, HIAG employed 81 people in German-speaking and French-speaking Switzerland.
Strategy
Sustainability is a fundamental part of HIAG's business model and is at the heart of its business activities. HIAG is convinced that continuous progress in its own sustainability performance helps to identify entrepreneurial opportunities and risks at an early stage and to create excellent living spaces. In this way, HIAG generates social added value and entrepreneurial success. The sustainability strategy is embedded in the Corporate Strategy. This has been approved by the Board of Directors and is reviewed annually for optimisation.
Sustainability goals
HIAG sets itself ambitious and measurable goals. Information on the current degree of target achievement is provided in the sustainability report. Further goals are reviewed annually. Six goals are currently being pursued:
- reduction of greenhouse gas emissions in the existing portfolio:
a) The Scope 1 emissions of the existing portfolio are reduced by 85% per m2EBF by 2035 based on the 2021 values.
b) The Scope 1 and 2 emissions of the existing portfolio are reduced by 65% per m2EBF by 2035 based on the 2021 values.
c) By 2050, the scope 1 and 2 emissions of the existing portfolio are net 0 kg/m2EBF. - further development of the existing concept for the promotion of biodiversity until 2026.
- improve general employee satisfaction by the end of 2027, based on the surveys conducted in 2023 2025.
- implementation of a comprehensive package of measures to further strengthen employee health and improve occupational safety in the workplace under HIAG's control by 2026.
- implementation of a comprehensive package of measures to further improve tenant satisfaction by 2026.
- by 2030, at least 30% of the properties in the existing portfolio will have a sustainability certificate.
Sustainability policy and codes of conduct
In order to live up to its responsibility as an ethically honest company, HIAG requires its employees and contracted business partners to adhere to its codes of conduct. They describe the expected business behaviour and define standards that must be respected and supported. Adherence to ethical standards and strict compliance with all laws relevant to the company form the basis of our activities.
Sustainability policy for HIAG
Code of conduct for HIAG employees
Code of conduct for suppliers and their subcontractors
External reviews
HIAG's sustainability work is evaluated by various organisations. The results reflect the scope of the sustainability work performed and indicate additional HIAG strives to continuously improve the ratings it achieves. In doing so, HIAG focuses primarily on the Swiss sustainability rating from Inrate as well as the ratings of the Global Real Estate Sustainability Benchmark (GRESB). An expansion of the list of ratings relevant to HIAG and its stakeholders is reviewed annually.
Inrate Sustainability Assessment 2025
Rating: B (scale A+ to D-)
Inrate is an independent Swiss sustainability rating agency. With the Sustainability Assessment, Inrate generates an industry-specific benchmark. Based on the above-average result, HIAG qualifies since 2022 for the SPI ESG Index of the SIX for the first time. The results from the Inrate Sustainability Assessment are decisive for inclusion in the index.
GRESB
Real Estate Assessment 2025:
Development: 84 out of 100 points, Green Star
Standing Investments: 77 out of 100 points, Green Star
GRESB Public Disclosure Level: A (scale A to E)
GRESB is the leading sustainability rating for the real estate industry. HIAG is participating in the GRESB Real Estate Assessments (Standing Investments and Development) since 2022.
Sustainalytics
In October 2025, HIAG Immobilien Holding AG received an ESG Risk Rating of 15.8 and was assessed by Sustainalytics to be at low risk of experiencing material financial impacts from ESG factors
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