Climate change is no longer a future risk for the built environment, it is already reshaping how we design, build and regulate across the Nordic region. Increasing precipitation, flooding, rising temperatures and more frequent extreme weather events are placing new demands on buildings and infrastructure.
For authorities, municipalities and industry actors, this raises urgent questions: Are current regulations sufficient? And how can we ensure that buildings constructed today remain resilient under future climate conditions?
As part of the Nordic Sustainable Construction initiative, Nordic authorities are collaborating under Task 3 Climate Adaptation and Biodiversity in Building Regulation in the Climate Work Package. The aim is to strengthen understanding of how climate adaptation is addressed in current regulatory frameworks and to support the development of Nordic guidance and implementation tools for authorities, municipalities and practitioners.
This article presents preliminary findings from the ongoing work, which will be further developed into more detailed analyses and recommendations.
Mapping Nordic Approaches
To better understand how climate adaptation is currently integrated into the built environment, national authorities across the Nordic countries have been consulted. The mapping provides an initial overview of how climate risks are reflected in building regulations and technical guidance.
The responses highlight both shared approaches and differences between countries.
Climate Adaptation in Nordic Building Regulations
Across all Nordic countries, climate adaptation is rarely regulated as a standalone requirement. Instead, it is embedded in broader functional requirements related to safety, durability and indoor environmental quality.
Denmark
In Denmark climate adaptation is mainly addressed through the Danish Building Act and Building Code (BR18). Requirements related to moisture protection, structural safety, drainage and indoor climate help ensure building resilience. Additional measures are addressed through land-use planning, coastal protection and water management. Denmark has developed national knowledge platforms that provide tools and knowledge to support practitioners working with climate adaptation.
Finland
Finland approaches climate adaptation through national climate policy and planning legislation. The Climate Act (2022) and the National Climate Change Adaptation Plan (2030) establish goals for strengthening resilience in the built environment. Climate considerations are also being integrated into reforms of the Land Use Act.
Iceland
In Iceland, climate adaptation is addressed through the Building Act and Building Regulation. Requirements related to moisture protection, drainage, indoor climate and durability contribute to climate resilience. National policy frameworks, including the National Climate Adaptation Strategy (2021), support broader adaptation efforts, although consideration of buildings is limited.
Norway
Climate adaptation is closely linked to land-use planning through the Planning and Building Act. At building level, the regulation TEK17 addresses natural hazards such as flooding and landslides, and stormwater solutions need to account for climate-adjusted rainfall scenarios. Research initiatives such as Klima2050 also provide guidance for climate-resilient construction.
Sweden
In Sweden, climate adaptation is addressed through the Planning and Building Act (PBL) and regulations issued by Boverket. Recent updates include provisions related to loads, thermal comfort and moisture safety based on future climate conditions. Municipalities must also consider climate risks in spatial planning.