Proven on real sites. Delivering measurable cost, carbon, and compliance outcomes.
Working with Welsh housing associations, contractors, and local authorities to deliver a data-driven circular model on live construction sites across North Wales.
4 active case studies across housing, new build, local authority, and research partnerships
Request Full Case Study Pack (PDF)Williams Homes
Multi-Site New Build Partnership
Why it matters: Full integration across live and future sites — moving from pilot to embedded model
The Challenge
Williams Homes operates multiple new-build sites across North Wales simultaneously. Traditional skip-based waste management offered no visibility into material composition, no carbon data, and no way to prove compliance across sites. With 80% of waste by volume being recoverable hard plastics, significant value was going to landfill.
TroCymru Approach
TroCymru deployed on-site waste interception across all live and upcoming sites, starting with a 40-home development in Bangor. Every material stream is QR-tagged, GPS-tracked, and routed to the highest-value destination. The compound handles drainage pipes, uPVC fascia offcuts, timber, and plasterboard as separate tracked streams.
Outcomes
- 80% of waste identified as recoverable hard plastics — creating a high-value diversion opportunity
- All live and upcoming sites committed to TroCymru (Bangor, Llanrug, Pwllheli)
- Full chain-of-custody from site to destination for every material movement
- New-build waste profiles established for industry benchmarking
Heritage Site: Pwllheli Polish Camp
One of the Williams Homes sites is the historically significant Polish Camp in Pwllheli. Materials are being recovered with sensitivity to heritage and community value — combining circular economy principles with cultural preservation. This represents TroCymru's ability to operate in complex, high-profile environments.
“TroCymru's proposed model aligns with Adra's aspirations around decarbonisation, waste reduction, and supporting the circular economy in our communities.”
Adra Housing Association
Kitchen Retrofit Pilot
Why it matters: Scalable retrofit model for housing association programmes — proving the system on 16 kitchens before rolling out to 120
The Challenge
Adra manages 6,800+ homes across North Wales. Their kitchen retrofit programme covers 120 kitchens, but traditional waste management provided no data on material composition, carbon impact, or social value. With tightening Welsh regulations and ESG reporting requirements, they needed a system that could scale across their entire estate.
TroCymru Approach
TroCymru is running an 8-week proof of concept across 16 properties, intercepting waste at source, QR-tagging every material, and routing reusable items through local social enterprise partners. The pilot produces WLCA-aligned carbon data and measurable social value evidence for Adra's board reporting.
Outcomes
- 16-property pilot validating the model before 120-kitchen rollout
- First WLCA-aligned carbon savings report for a Welsh housing association retrofit
- 40% projected skip reduction through on-site segregation
- Social value evidenced through Antur Waunfawr partnership
Gwynedd Council
Regenerative School Scheme — Bontnewydd
Why it matters: First local authority collaboration — aligning material recovery with Net Zero Gwynedd targets
The Challenge
A school demolition project in Bontnewydd, near Caernarfon, presented both a waste challenge and an opportunity. Valuable structural materials — particularly Glulam beams — were at risk of being sent to landfill. The council needed a partner who could recover materials responsibly while supporting their Net Zero Gwynedd and circular economy commitments.
TroCymru Approach
TroCymru collaborated with Gwynedd Council and Bangor University to salvage Glulam beams for university stress testing, alongside recovering windows, doors, and a wide range of building products. Every item was tracked through the chain of custody, providing the council with full compliance evidence.
Outcomes
- Glulam beams salvaged for Bangor University structural testing and research
- Windows, doors, and building products diverted from landfill for reuse
- Aligns with Net Zero Gwynedd and circular economy targets
- Positions TroCymru for Tier 3 Strategic Partnership with the council
Bangor University BioComposites Centre
Research Partnership — C&D Waste Recycling Review
Why it matters: Currently 63% of UK waste wood is burned for energy. This partnership is building the evidence base to move materials up the value chain.
The Challenge
The UK handles 4.5 million tonnes of waste wood annually, yet 63% is burned for energy recovery — the lowest rung of the waste hierarchy. Only 22% goes to panel products. There was no independent academic review connecting circular construction waste management with emerging innovations in material reuse.
TroCymru Approach
TroCymru partnered with Prof. Graham Ormondroyd at Bangor University's BioComposites Centre to produce a 14-page academic review examining C&D waste challenges, wood waste recycling markets and grading systems, cleaning technologies, and emerging innovations including wood fibre insulation and nanocellulose extraction from waste MDF.
Outcomes
- 14-page peer-reviewed report published — available for download
- Wood grading system (A–D) now informing TroCymru's material routing decisions
- Emerging innovations identified: wood fibre insulation, nanocellulose, pyrolysis
- Carbon factor accuracy strengthened with peer-reviewed data
Embedded across North Wales
TroCymru operates on live construction sites across North Wales — not from a distance, but on the ground.
Bangor
Williams Homes — 40-home new build
Llanrug
Williams Homes — new build site
Pwllheli
Williams Homes — Polish Camp heritage site
Bontnewydd
Gwynedd Council — school regeneration
Growing network: Additional pilots and partnerships currently being developed across North Wales with housing associations, contractors, and local authorities.