Community Sustainability

Building Resilience: A Century of Heritage—A New Era of Responsibility

For 100 years, IB has been shaping the Swiss architectural landscape. Faced with the climate emergency, we have chosen not simply to endure the transition, but to embody it by aligning our practice and our firm with planetary boundaries.

- 6,35%

reduction in overall greenhouse gas emissions by 2024 (successful decoupling despite the firm’s growth)

Net-zero by 2050

Climate trajectory in line with the standards of the Science Based Targets initiative (SBTi) (-42% for Scopes 1 and 2 by 2030)

Dual recognition

IB has received the EcoEnterprise “Excellence” certification and the EcoVadis “Committed Company” award

Becoming Better and
More Sustainable

Climate
and Mobility

Electrification and reduction of the company vehicle fleet (-20.8% in Scope 1 emissions by 2024).

Transition to 100% renewable energy in our branches and continuous reduction of our digital footprint and printing.

Human Capital and
Social Justice

100% of our services in Switzerland are delivered by teams on permanent contracts.

Equity and Diversity: 40.1% of our workforce is women, 33% of the Board of Directors is women, and we have a pay equality ratio of 1.6 between the highest remuneration and the median salary.

Health and Safety: Zero-accident target achieved on our construction sites and a partnership with Proitera to promote psychosocial well-being.

Ethical Corporate Governance

Zero incidents of corruption and the establishment of a dedicated governance structure involving Business Unit Leadership (GBL) as well as a Sustainability Community.

Strategic Partner for Our Clients

Environmental, Social, and Corporate Governance (ESG) Compliance and Reporting: IB provides clients with the necessary data (Scope 3, LCA - Life Cycle Assessment) for the Corporate Sustainability Reporting Directive (CSRD) and European Taxonomy Reportings.

Tools for the Future: Integration of CO₂ assessment into the BIM workflow, digital GS1 material passports for the circular economy, and the transition to regenerative architecture.

How Our Work Shapes Projects

Decarbonization and Structural Innovation: Tilia Tower (Prilly/Malley)

A living tower incorporating a timber-concrete structure, low-carbon LC3 cement (Limestone Calcined Clay Cement), and a pioneering system of energy geostructures (5 km of heat pipes in the foundations). Certified according to the Minergie-P-Eco and SNBS neighborhood standards (Swiss Sustainable Building Standard).

Environmental Sustainability and Reuse: IOC Olympic House (Lausanne)

One of the world’s most sustainable buildings (Minergie-P, SNBS Platinum, LEED Platinum). 97% of the materials from the old building were recycled or reused during demolition.

Energy-Efficient Renovation and Historic Preservation: Les Minoteries (Geneva)

Refurbishment of a large housing estate comprising 329 homes, achieving an 80 % in heating requirements and 100 % renewable energy operation thanks to heat recovery from waste water.