Chapter 07 · Materials & footprintsCircular Economy & Materials
Deconstruction
Definition
Deconstruction is the careful dismantling or disassembly of a building to maximise the recovery of materials and components for reuse, resale and recycling, in contrast to conventional demolition, which destroys structures and sends mixed waste to landfill. Well-executed deconstruction can divert up to 80–90 per cent of materials from the waste stream; practice distinguishes non-structural "soft-stripping" from full structural deconstruction. The term took hold at the first Used Building Materials Association meeting in Canada in 1996.
References
definition
demolition vs deconstruction and benefits
term origin (1996) and structural/non-structural distinction
Overview
What it means
Treating an end-of-life building as a material bank to be mined, not waste to be hauled.
How it is used
Municipalities adopt deconstruction ordinances; projects recover timber, fixtures, brick and steel for reuse; the practice earns credits in green-building certification and supports local reuse economies.
Why it matters
Construction and demolition generate 30–50 per cent of waste in industrialised countries; deconstruction is the highest-value recovery pathway, cutting embodied carbon and landfill demand while creating jobs.