NuBau Labs is a Horizon Europe-funded research and demonstration project conceived by Arup and Queen’s University Belfast. Its European consortium plans a pilot factory in East London to test, remanufacture and certify structural components salvaged from buildings that must be demolished. The project is planned, not yet a proven factory operating at commercial scale.
What NuBau Labs plans to do
The project proposes a route for recovering structural components and preparing them for use in new buildings. Its stated sequence matters: first consider retaining, retrofitting or directly reusing a building; salvage for the factory is intended only after those options have been exhausted and demolition is necessary. The aim is to retain more value in usable components than would be retained by reducing them to aggregate. That is the project’s framing, not a claim that aggregate recycling is never appropriate.
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At the planned factory, components would be tested, remanufactured and certified for reuse. These steps are central to the proposal: reclaimed structural elements need evidence that they are suitable for their next application. The report does not specify the testing protocols, acceptance criteria or certification standards the project will use.
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The first pilot factory is planned for the River Thames area of East London. The reported project budget is €4 million in Horizon Europe funding. Construction Management reports that Arup and Queen’s University Belfast conceived the project. Named participants include GXN, Politecnico di Torino, Banagher Precast Concrete, The Stonemasonry Company, Pilbrow & Partners, Wrocław University of Science and Technology, North Adriatic Sea Port Authority – Ports of Venice, Keltbray, Gardiner & Theobald, and the Engineers Reuse Collective.
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The Institution of Structural Engineers identifies Arup director Kerry Greeves as leading NuBau Labs and describes its focus as material reuse, remanufacturing and low-carbon logistics. A Wrocław University of Science and Technology team member’s public post describes the effort as a three-year project launched on 1 September 2026. That schedule is attributed to the participant; it is not independently confirmed by the project report.
ReVault: an early planned demonstration
One of the first systems planned for demonstration is ReVault, an Arup-developed floor system that uses reclaimed concrete to create new floors. Construction Management reports that ReVault has 70% lower embodied carbon than conventional floor systems. That is a project comparison reported by the publication, not a verified result that can be applied to all reclaimed concrete or building projects.
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NuBau Labs brings together recovery, engineering, remanufacturing and logistics in a proposed process that could make structural reuse easier to assess and deliver. Its practical test is whether recovered components can be identified, transported, verified and prepared for safe use in new construction while retaining enough value to justify the effort. Certification and low-carbon logistics are therefore as important to the model as the salvaged material itself.
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The available project reporting does not state the factory operator, opening date, processing capacity, detailed milestones, component acceptance rules or technical testing methods. It also does not establish how the demonstration would be replicated in other cities. These are significant unknowns: a pilot can show whether a process works in a particular setting, but it does not by itself prove that the same economics, supply of components or logistics will work at scale elsewhere.
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Sources
- Construction Management: “ ‘Tomorrow’s landmarks from yesterday’s concrete’: Arup initiative to push material reuse” — project, funding, participants, location, process and ReVault comparison.
- Institution of Structural Engineers: “Sustainable Structures of the Future” — identifies Kerry Greeves as project lead and summarizes the focus.
- Magdalena Grzegorzewska-Gryglewicz, Wrocław University of Science and Technology team member, public LinkedIn post/profile — attributed project launch date and duration; no URL was supplied.
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