Sustainable Logistics and Warehousing Solutions – Net Zero Carbon Buildings

DELIVERING SUSTAINABILITY PERFORMANCE FOR THE FUTURE

We take a long-term view, committed to ensuring our spaces can meet key sustainability ambitions for all of our stakeholders, making a meaningful difference for the people who work in our buildings and live in our local communities. We work collaboratively with our clients, starting from the design and specifications of their buildings to ensure they are as efficient and resilient as they can be, are aligned with corporate sustainability objectives, and provide the best workplaces to attract and retain talent.

Data is integral to maximising the effectiveness of our approach, to ensure we are tracking and delivering on our performance and continuing to add value to our spaces through proactive asset management.

Our four pillars of focus

Sustainable buildings

To deliver sustainable buildings through acquisition, development and asset management.

Climate and carbon

To achieve net zero carbon and manage physical climate risks.

Natural capital

To enhance nature and biodiversity across our assets under management and development.

People and communities

To create value and positive impact for the people and communities in the areas where we operate.

Aligning to UN SDG 11

To deliver sustainable buildings through portfolio, development, and asset management.

Our commitments:

We are committed to designing and developing low-carbon buildings, ensuring we meet evolving planning requirements and align with our clients’ sustainability requirements.

Headline targets:

100% of new development projects completed with EPC A rating: 100%
100% of Projects expected to achieve BREEAM Excellent upon completion: 100%
Weighted average portfolio upfront embodied carbon intensity: <400 kgCO2e/m2: 2025: 292.4 (building-only), 445.0 (whole site)

Our Approach

Integrating sustainability throughout our business

Our responsible investment approach is underpinned by global frameworks and benchmarks; evidence and data; and collaborative partnerships with clients, investors, communities and suppliers.

Aligning to meaningful sustainable targets

Our sustainability strategy aligns with the Paris Agreement decarbonisation pathways, ensuring that our portfolio is resilient to the changing climate and makes a positive contribution to global net zero carbon targets. By measuring our strategy against meaningful targets, we track our progress and can be held accountable.

Leading sustainability ratings

Our strategic approach has led to leading sustainability ratings. We focus our energy and expertise on understanding where we can directly impact and where we need to influence, facilitate or partner on sustainable initiatives. This includes improving EPCs; offering green leases; encouraging the adoption of renewable energy; developing climate resilience and biodiversity measures; encouraging sustainable transport and supply chain management.

Making a measurable impact

We ensure our investments have a measurable and positive impact on communities and people across our operating footprint. We work with clients throughout our partnership to ensure buildings across our portfolio protect and improve the surrounding nature, whilst enhancing the wellbeing of people inside and outside them.

A responsible Manager

Tritax Big Box’s Manager, Tritax Management LLP, is responsible for delivering the Company's sustainability strategy, reporting to the Big Box plc Board - who are committed to ensuring that the long-term interests of all stakeholders are being served.

Strong governance and strategic management

Tritax Management LLP has implemented a responsible business plan to minimise its operational impact and provide low carbon services to the Company. It is accredited in ISO 14001 for the environmental management of Tritax Big Box REIT.

Delivering on our sustainability strategy

EPC B or above (Investment portfolio)

kg CO2e/m²

Upfront embodied carbon target (building-only)

kWh/sq ft

Weighted average portfolio energy intensity

kg CO2e/sq ft

Weighted average portfolio carbon intensity

REIT stats as of 31 December 2025

RECOGNITION FROM MARKET-LEADING INDICES

We continuously seek to improve our ratings among key sustainability and ESG benchmarks — demonstrating our commitment to reaching our ESG targets.

COLLABORATING WITH OUR STAKEHOLDERS

We cannot achieve our sustainability targets alone. We seek to collaborate with our stakeholders in a variety of ways to further our (and the wider macro) sustainability agenda.

SUSTAINABILITY IN ACTION

Our priority is the delivery of sustainability performance through integration into our operational activities. Here are some examples.

Investment lifecycle integration

We consider sustainability factors across the investment lifecycle, using a template consisting of key sustainability criteria. Our development programme uses a low-carbon baseline specification and an embodied carbon target to enable low-carbon construction. Our asset management programme is key to delivering our net zero carbon targets in collaboration with clients.

Net zero carbon

We minimise carbon in developments any way we can by using low-carbon materials and methods. As a last resort, we offset residual carbon through certified carbon credits. We are exploring and implementing initiatives in collaboration with clients to remove operational carbon, increase efficiency and introduce renewable generation on our sites.

Biodiversity

Our development site at Littlebrook, Dartford was a brownfield but is now enhancing biodiversity, natural capital and social value. The largest building on site has a 3.5MWp solar array on the roof — and 30% of the site is set aside for open space and habitat creation. Over 1 million bees are being looked after by a group of local beekeepers who also involve local schools.

Tritax Social Impact Programme

We want to help young people in the communities across our portfolio to fulfil their potential. We work with our clients and local stakeholders to provide platforms for education and opportunity to unlock the potential of the next generation and offer a brighter future for our local communities.

Stakehill refurbishment

Our Stakehill refurbishment is a prime example of how we are working proactively to decarbonise our investment portfolio. The building, originally constructed in 1988, underwent a comprehensive nine month refurbishment programme to replace the entire cladding to the elevations and roof, whilst retaining the existing structure and floor slabs. We installed roof lights for natural daylight alongside 3,022 PV panels with a generating output of 1.3 MWp saving an expected 151 tonnes of CO2 per annum. We also installed LED lighting, a VRF system and an air source heat pump further improving the energy efficiency of the unit. As a result, the EPC improved from a B to an A+ and the upfront embodied carbon achieved was 146 kgCO2e/m2, 64% less than our target for new developments.

DOWNLOAD OUR ANNUAL REPORT

Transparency is key to our partnerships with clients, investors and stakeholders. Our 2025 Annual Report provides a comprehensive look into our strategic framework, sustainability goals and performance.

Download

Contact Us

Jennie Colville

Senior Director, Sustainability

[email protected] +44 (0)20 7290 1616

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Sustainability