Circular Construction in Regenerative Cities (CIRCuIT) is a collaborative project running from 2019-2023 and involves 31 ambitious partners across the built environment chain in Copenhagen, Hamburg, the Helsinki Region and Greater London.


Funded by the European Commission’s Horizon 2020 programme, the project will support the creation of regenerative cities by implementing sustainable and circular construction practices.​ 


Many techniques, tools and approaches related to circular construction have been developed and tested around Europe, but circular techniques are yet to be demonstrated effectively at a city or regional level.  


CIRCuIT aims to bridge the gap between theory, practice and policy by delivering a series of demonstrations, case studies, events and other dissemination activities that showcase how circular construction approaches can be scaled and replicated across Europe to enable cities to build more sustainably and transition to a circular built environment.  

Our objective is to demonstrate how cities can scale and replicate these activities and transition their construction sector to a circular economy.  



This is a graphic of CO2 inside a cloud to indicate carbon emissions.

Reduce carbon emissions and increase regenerative capacity in the four cities

Reduce yearly consumption of virgin materials by 20% in new built environments

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Demonstrate cost savings of 15%


Each city will deliver nine demonstrations exploring three innovative interventions:

  • Urban mining and reverse cycles - the reuse and recycling of materials

  • Extending building life through transformation and refurbishment

  • Designing for disassembly and flexible construction to make reuse, recycling, transformation and refurbishment easier

The project will set up knowledge and skills sharing to support cities in implementing circular construction solutions and initiate changes at system level through:

  • Developing recommendations, tools and resources, including urban planning instruments, public procurement criteria and roadmaps

  • Establishing a Circularity Hub - a suite of digital platforms including a data atlas, dashboard, citizen engagement portal, materials exchange platform and wiki

  • A knowledge sharing structure to disseminate project experience, knowledge and practices to cities and the construction industry which will include providing training and establishing networks across Europe.

CIRCuIT will be providing a consistent and comprehensive approach to data collection, analysis and management including: 

  • Developing a concise and robust list of indicators to provide an overview of circularity at city level

  • Creating a material stocks and flow database



This image is the logo of the City of Copenhagen, which includes an outline of three small buildings, with the City of Copenhagen text wrapped around in a three quarters circle.
This is an image of the logo for the city of Hamburg, which is a red caste-like building sitting on top of a wavy blue line with the text 'Hamburg' underneath.
This is an image of the ReLondon logo, which is black text on ReLondon
This image is the logo for tHelsinki Region Environmental Services HSY, which is a on the left hand side a series of light blue, green and dark green droplets in three concentric circles. On the right sight are the letters HSY in green.