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CIRCuIT · Project

Reuse Building Materials at City Scale to Cut Costs and Raw Material Waste

constructionPilotedTRL 7

Imagine tearing down a building but instead of sending everything to landfill, you carefully take it apart like LEGO and reuse the pieces in new construction. Four major European cities — Copenhagen, Hamburg, Helsinki region, and London — ran 36 real demonstration projects doing exactly that: dismantling buildings to recover materials, refurbishing structures, and designing new buildings so they can be easily taken apart later. They also built a shared data platform to track how circular their construction sector actually is, and a training academy to spread what they learned.

By the numbers
36
demonstration projects across 4 cities
12
physical demonstrators constructed (3 per city)
20%
target reduction in virgin raw material consumption in new built environments
15%
target cost savings in new built environments
4
partner cities (Copenhagen, Hamburg, Helsinki region, London)
32
consortium partners
3
innovative solutions demonstrated (dismantling, refurbishment, design for disassembly)
The business problem

What needed solving

The construction industry is one of the biggest consumers of raw materials and generators of waste in Europe, yet most demolition still sends materials straight to landfill. Cities face rising material costs, tightening waste regulations, and pressure to meet circular economy targets — but the tools and methods to actually do circular construction at city scale have been fragmented and stuck at pilot level.

The solution

What was built

The project delivered 12 physical demonstrators across 4 cities showing selective dismantling, refurbishment, and design-for-disassembly techniques. It also built the Circularity Hub data platform for tracking circular economy progress, urban planning instruments for cities, and the CIRCuIT Academy for scaling knowledge. A total of 38 deliverables were produced across 36 demonstration projects.

Audience

Who needs this

Demolition companies transitioning to selective deconstructionProperty developers facing construction waste regulationsMunicipal urban planning departments with circular economy targetsModular and prefabricated building manufacturersConstruction material recyclers and secondary material suppliers
Business applications

Who can put this to work

Construction & Demolition
any
Target: Demolition and deconstruction companies

If you are a demolition company looking to move beyond wrecking-ball methods — this project demonstrated selective dismantling techniques across 36 projects in 4 cities that recover reusable materials. The approach targets a 20% reduction in virgin raw material use and 15% cost savings in new built environments. The 12 physical demonstrators were built for real regulatory environments with local partners.

Real Estate Development
enterprise
Target: Property developers and urban planners

If you are a property developer facing rising material costs and tighter waste regulations — this project created urban planning instruments and a Circularity Hub data platform to help cities and developers implement circular construction. Tested across Copenhagen, Hamburg, Helsinki region, and London with 32 consortium partners, the tools measure regenerative capacity and track circular economy progress at city level.

Building Materials & Prefabrication
mid-size
Target: Modular and prefabricated building manufacturers

If you are a prefab manufacturer wanting to design products for future reuse — this project demonstrated design-for-disassembly and flexible construction methods in 12 demonstrators across 4 cities. The CIRCuIT Academy knowledge-sharing structure was set up specifically to help companies scale these techniques beyond pilot stage.

Frequently asked

Quick answers

What would it cost to adopt these circular construction methods?

The project data does not include specific adoption costs. However, the objective states a target of 15% cost savings in new built environments through material reuse and circular techniques. Actual cost depends on building type, local regulations, and material recovery rates.

Has this been tested at real industrial scale?

Yes — this was an Innovation Action with 36 demonstration projects across 4 major European cities (Copenhagen, Hamburg, Helsinki region, London). 12 physical demonstrators were constructed in real regulatory environments with local partners, making this one of the larger circular construction pilots in Europe.

What about intellectual property and licensing?

The project involved 32 partners including 15 industry participants and was coordinated by Copenhagen Municipality (a public body). Based on available project data, the urban planning instruments and Circularity Hub data platform were developed as shared tools. Specific IP arrangements would need to be confirmed with the consortium.

Does this comply with current EU construction waste regulations?

The project directly addresses EU circular economy goals for the built environment. The 12 demonstrators were specifically constructed for local regulatory environments in Denmark, Germany, Finland, and the UK. The urban planning instruments were designed to help cities implement circular construction within existing governance structures.

How long would implementation take?

The project ran from June 2019 to November 2023 — over 4 years for full demonstration across 4 cities. Individual techniques like selective dismantling or design-for-disassembly can be adopted incrementally. The CIRCuIT Academy was set up specifically to accelerate knowledge transfer and upscaling.

Can these methods integrate with existing construction workflows?

The consortium included 15 industry partners from the entire built environment value chain, ensuring practical compatibility. The 3 demonstrated solutions — dismantling for reuse, transformation and refurbishment, and design for disassembly — were tested in real projects with local construction partners in 4 countries.

Consortium

Who built it

The CIRCuIT consortium is unusually large with 32 partners spanning 4 countries (Denmark, Germany, Finland, UK), giving it broad European coverage across different regulatory environments. With 15 industry partners (47% ratio) and 5 universities, the balance leans toward practical application rather than academic research. The coordinator is Copenhagen Municipality — a public authority, not a university — which signals a governance-driven approach focused on real urban implementation. Only 2 partners are SMEs, meaning the consortium is dominated by established players and public bodies. The 12 additional "other" partners likely include municipalities, industry associations, and non-profits, reinforcing the city-level implementation focus.

How to reach the team

Coordinated by Copenhagen Municipality (KOBENHAVNS KOMMUNE), Denmark — contact through municipal sustainability or urban development department.

Next steps

Talk to the team behind this work.

Want to connect with the CIRCuIT team about their circular construction tools, data platform, or demonstration results? SciTransfer can arrange an introduction.