Our Southall project replicated and scaled this sustainable practice by processing 1,800 tonnes of site‑won material for multiple engineering uses. The material was repurposed for:

- VSC piling
- Bedding for drainage
- Service ducting
- Engineered fill for bulk earthworks

Through efficient reuse and significantly reduced reliance on imported materials, the project:

- Saved 12 tonnes of carbon
- Removed the need for 200 lorry journeys
- Reduced noise, pollution and disruption in the local community
- Lowered embodied carbon across the build

This project highlights how thoughtful material management can deliver major environmental gains on urban sites.

Avonmouth represents one of Magrock’s strongest sustainability case-studies to date.

- 15% reduction in embodied carbon - 746 tonnes of CO₂ saved, the equivalent to 746 London-New York flights. Achieved using high-replacement cement mixes - 60% in pads, 70% in CMCs
- 63% EAF steel used in the frame; a far more energy-efficient steel route
- 10% cement replacement in service yards added further reductions
- Extensive ecological stewardship protecting one of the UK’s rarest mammals; the water vole; with exclusion zones and habitat safeguards implemented
- A change in piling strategy from deep CFA piles to CMC piling required a complex engineering solution to suit the soft ground conditions. This friction-based ground improvement controlled long-term settlement, delivered significant cost savings, and reduced embodied carbon by 63%
- With an approximate 859TCO2e saved through the piling methodology and 746TCO2e saved with cement replacements, this project prevented more than 1,600T of carbon entering the atmosphere

This case study demonstrates how Magrock’s collaborative approach with clients and consultants delivers practical solutions that generate both environmental gains and commercially robust outcomes, fully embodying our sustainable approach to projects.

Our project in Dartford required thoughtful planning, circular use of materials, low-carbon engineering and responsible remediation.

Our approach focussed on processing site-won material for reuse under a detailed CL:AIRE complaint Materials Management Plan (MMP), ensuring full traceability and responsible re-use of soils throughout. Furthermore, we adjusted site levels to minimise surplus soils, value-engineering the drainage design to reduce excavation requirements, and implemented CMC ground improvement piling to allow for shallow foundations and drastic muckaway reductions. During construction, the team discovered significant asbestos contaminated soils which had the potential to become a major environmental and financial burden.

Proactive management and early engagement with environmental specialists ensured a far more sustainable outcome, rather than removing the full hotspot which would have resulted in extensive lorry movements, greater landfill requirements and considerable cost. The team carefully assessed the material and determined that only 80m3 required removal, with the remainder safely encapsulated beneath engineered hardstanding and validated under the final Verification Report.