Introduction

SEWSCAP4 — the fourth generation of the South East & Mid Wales Collaborative Construction Framework — acknowledges the urgent realities of climate change and is committed to driving down carbon emissions across the built environment. As a key framework for public sector construction projects in South East and Mid Wales, SEWSCAP4 is committed to leading by example in the transition to a net-zero carbon future. This strategy outlines our approach to supporting clients and contractors to deliver net zero construction through the framework, contributing to a Net Zero Welsh Public sector by 2030 and Net Zero Wales by 2050.

Background

The construction sector is a major source of carbon emissions, and in Wales, the public sector holds a vital responsibility in leading the decarbonisation agenda through the procurement, design, and delivery of infrastructure and buildings.

SEWSCAP4 brings together public sector organisations and contractors to deliver high-quality, sustainable construction projects. By embedding carbon reduction into our framework policies and operations, and championing socially responsible procurement, we actively support the goals of the Well-being of Future Generations (Wales) Act 2015 and contribute to the wider goal of achieving a Net Zero Wales by 2050.

Vision and Objectives

SEWSCAP4 is committed to leading the transition to low-carbon construction in South East Wales. Our vision is to create a built environment that drives decarbonisation, supports climate resilience and helps communities thrive in a changing climate. To achieve this, we are focused on:

  • Setting clear net zero expectations for contractors through our Net Zero Strategy and framework requirements.
  • Empowering our partners and supply chain to decarbonise by providing guidance, support, and shared learning.
  • Fostering innovation and collaboration to deliver practical, scalable solutions that drive net-zero outcomes.

Together, these objectives drive our contribution to shaping a low-carbon built environment and a greener, more sustainable Wales.

Carbon Reduction Code for the Built Environment

As a leading framework in the Welsh construction industry and an active member of the National Association of Construction Frameworks (NACF), SEWSCAP4 is committed to the Carbon Reduction Code for the Built Environment[1].

To ensure compliance with the Code, SEWSCAP4 requires all contractors to;

  1. Sign up to the Carbon Reduction Code for the Built Environment at a minimum of the pledger level by 1st October 2026.
  2. Submit an updated carbon reduction plan to the framework team on an annual basis.
  3. Complete the designated learning pathways through the Supply Chain Sustainability School by 1st October 2026.

Implementation Plan

To deliver our net-zero carbon vision and support our commitment to the Carbon Reduction Code for the Built Environment, SEWSCAP will implement a structured, collaborative approach across three strategic objectives:

1. Setting clear net zero expectations

    We will embed carbon reduction requirements into our framework through:

    • Publishing and annually reviewing our SEWSCAP Net Zero Carbon Strategy.
    • Requiring contractors to submit annual Carbon Reduction Plans.
    • Mandating contractor commitment to the Carbon Reduction Code at pledger level.

    2. Empowering our partners and supply chain

    We will empower our partners and suppliers to decarbonise by:

    • Providing contractors with training, templates, and guidance to develop carbon reduction plans.
    • Offering access to Supply Chain Sustainability School resources for all contractors.

    3. Fostering Innovation and Collaboration

    We will promote knowledge-sharing and sustainable innovations by:

    • Establishing a SEWSCAP4 Carbon Working Group to promote cross-sector collaboration.
    • Engaging with the NACF Sustainability Group to share best practices and innovations.

    Continual improvement

    SEWSCAP4 will continuously review and improve its approach to sustainability and net zero carbon strategy to ensure that it remains aligned with the latest developments in sustainability, circular economy, and low-carbon technologies. SEWSCAP4 will also work with clients, contractors, and suppliers to identify areas for improvement and share best practices.

    Conclusion

    SEWSCAP4 is committed to playing a leading role in decarbonising the built environment in South East and Mid Wales. By aligning with the Carbon Reduction Code for the Built Environment, and embedding decarbonisation requirements into our framework, SEWSCAP4 aims to facilitate the construction of high-quality public sector buildings that provide lasting environmental benefits for current and future generations in Wales.

    [1] Carbon Reduction Code for the Built Environment, Cambridge Centre for Smart Infrastructure & Construction, Issue 4, February 2025.