Urban Mining and the Reuse Supply Chain

Urban mining starts when an existing building is treated as a stock of recoverable assets rather than a pile of future waste. The work is practical: audit the building, separate the streams, protect the components that still have product value, test what has to be certified, and move the recovered material into a buyer’s specification before weather, storage cost, or demolition speed destroys the opportunity.

This section covers the supply-chain patterns that make that work credible: reused structural steel, recycled concrete aggregate, salvaged-component marketplaces, and pre-demolition material audits.

Start with Reused Structural Steel. It shows the section’s central discipline: recover a component as a product, preserve its identity and evidence, and only then route lower-value material to recycling.