Retrofitting the UK’s built environment at scale is crucial for meeting housing targets and achieving a just transition to a low-carbon society. This approach balances housing supply with the need to reduce emissions.

Arup's report, 'Retrofit at Scale', emphasises a system-led strategy that maximises impact through scaled action, outcomes, and neighbourhood-wide projects.

Successful retrofitting requires community engagement, comprehensive funding strategies, and incentives like the Social Housing Fund and Minimum Energy Efficiency Standards.

Strategic national support, data-driven planning, and industrial innovation are essential for cost-effective retrofitting, enhancing energy security, resilience, and quality of life.