Reusing existing materials, certified low-carbon products, and how to deliver a credible sustainability story without greenwashing.
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What this guide covers
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Reuse existing where possible
The greenest material is the one already on site. Strip-out should always assess what can be reused: raised access flooring, suspended ceiling tiles, partition systems, doors, and fittings. Reusing 30-50% of existing fit-out elements typically reduces project carbon by 15-25% versus full replacement, and saves 10-20% on materials cost.
Low-carbon material specification
Specify EPD (Environmental Product Declaration) certified products. Carpet manufacturers like Interface and Tarkett publish full-lifecycle carbon data. Joinery: FSC or PEFC certified timber, recycled MDF, formaldehyde-free adhesives. Plasterboard: British Gypsum EcoSilent or equivalent (lower carbon variant). Paint: low-VOC and EU Ecolabel certified.
Avoiding greenwashing
Real sustainability needs documentation. BREEAM Refurbishment certification, ISO 14001 contractor, EPDs for major materials, and a published carbon assessment. "We use sustainable materials" without certification is greenwashing. Increasingly investors and tenants require third-party verified sustainability data.
Frequently Asked Questions
Should we target BREEAM Excellent?
For 10+ year leases and ESG-conscious tenants — yes. Otherwise BREEAM Very Good usually achieves the marketing benefit at lower cost.
Can we reuse existing carpet?
Sometimes — assess condition. Reuse suitable for back-of-house; new spec usually preferred for client-facing zones.
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