Multiplex UK Shares Progress In Its 2025 ESG Report
United Kingdom. In line with World Green Building week, today we launch our 2025 ESG Report, offering a clear and honest view of our priorities and performance.
Last year, we reviewed our ESG strategy to ensure it remains focused on the issues that matter most to our clients, people and communities, while maintaining the long-term commitments that guide our business. This report highlights where we are making tangible progress, where challenges remain and how we are responding to the changing expectations of our industry, clients and communities.
Highlights
9,400 MWh generated at our solar farm in Norfolk under a Power Purchase Agreement (PPA), helping deliver low carbon projects with greater cost certainty
Our Scope 1 (direct) and 2 (indirect) emissions have fallen by 85.1%, driven by our PPA and transition away from fossil fuels, showing how targeted action can deliver meaningful progress towards net zero
We supported the recruitment of 96 new apprentices (+26 vs 2024) and facilitated 201 new job starts (+34 vs 2024), building a future-ready workforce to support project and planning target delivery
Became a Living Wage Employer and achieved the Mayor of London’s Good Work Standard accreditation, recognising fair pay and strengthening labour standards for a productive workforce
Conducted more than 1,400 Achilles ethical labour interviews, strengthening transparency and oversight of worker welfare, providing clients with confidence that ethical labour standards are maintained on site
Multiplex’s Power Purchase Agreement (PPA) – One Year in Operation
We continued to strengthen our renewable energy strategy throughout 2025, prioritising the transition to low-carbon power sources through our Power Purchase Agreement. Over 50% of our on-site energy now comes from our renewable grid.
In 2025, our Norfolk PV solar farm generated 9,400 MWh of energy, equivalent to powering 3,760 UK households for an entire year.
Early access to renewable power has changed how we plan projects. Our teams can explore grid connection strategies with our clients during PCSA stages, reducing emissions associated with energy-intensive enabling works.
Importantly, by fixing our wholesale energy costs for a full seven years, we can provide cost certainty in an increasingly volatile market, offering a rare advantage to clients navigating tight planning and carbon requirements.
Delivering meaningful ESG outcomes is not about standalone initiatives; it is about embedding sustainability, social value and ethical decision-making into every stage of project delivery. The progress highlighted in our report demonstrates what is possible when these principles become part of how we work every day.
Focus on Embodied Carbon and Adaptive Reuse
As we continue to reduce operational emissions, our focus is increasingly shifting towards embodied carbon and the wider environmental impacts of construction. This means reducing upfront carbon, improving material efficiency and circularity, and enhancing biodiversity. For our clients, these priorities are increasingly linked to planning compliance, project risk, long-term asset value and the transition to net zero.
Across London, planning authorities are driving a shift towards adaptive reuse, and our project portfolio increasingly reflects this change. Projects including New Zealand House, One Exchange Square, The Delft and 75 London Wall are retaining between 70-90% of existing structures, demonstrating how reuse can reduce upfront carbon while improving asset value and supporting planning objectives.
Meaningful progress depends on recognising what is working, learning from what is not, and continuing to raise expectations.
Spotlight: Depaul Garden Transformation – Holborn Viaduct
Through our partnership with Depaul UK, a leading youth homelessness charity, our Holborn Viaduct project has raised almost £50,000 since project commencement to support programmes that help young people access safe accommodation and build independent futures.
Working alongside Elite Landscapes, we transformed two underused garden areas at a Depaul-supported housing scheme into safe, accessible and low-maintenance outdoor spaces. The works included clearing and preparing both gardens, installing a durable sub-base and laying artificial grass.
Delivered in collaboration with our supply chain, the project has created valuable outdoor spaces that support wellbeing, social interaction and community building, ensuring young people supported by Depaul can benefit from the improved outdoor facilities long after the completion of Holborn Viaduct.
What’s Next?
Demand for low-carbon, resource-efficient and climate-resilient buildings will continue to grow as clients, investors and regulators place greater emphasis on sustainability. As operational emissions fall, embodied carbon, supply chains and completed assets will increasingly define our impact, requiring stronger collaboration, better data and practical solutions that support project outcomes. At the same time, addressing skills shortages and workforce capacity will remain critical. We will continue working with our supply chain, SMEs, local businesses and community partners to expand opportunities, strengthen industry capability and deliver lasting benefits for the communities in which we work.
Across both environmental and social priorities, we will continue to refine our strategy, review our targets and raise expectations – both for ourselves and our delivery partners.
Click below to read the report in full.
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