London Assembly Urges Action to Combat Heat-Related Deaths in Social Housing

Extreme Heat Threatens Londoners

The London Assembly has raised alarms over the growing public health threat posed by extreme heat, particularly in social housing. With approximately 75% of London’s social housing at high risk of overheating, the Assembly's report, titled 'Hot property: how planning can help Londoners beat the heat', highlights the urgent need for action to protect vulnerable populations, especially children.

Rising Temperatures and Health Risks

Recent data indicates that London has the highest proportion of deaths attributable to extreme temperatures in the UK. This summer is projected to be the hottest on record, with heatwaves exceeding 40 degrees becoming 20 times more likely than they were in the 1960s. The impact of these rising temperatures is severe, with over one million children in London facing increased health risks due to overheating.

The Need for Retrofitting

The Assembly has called on the Mayor to accelerate the mass retrofitting of homes to mitigate overheating risks. The estimated cost for retrofitting heat-exposed homes in London could range from £9 billion to £45 billion. This investment is crucial for safeguarding the health of residents and preventing future heat-related fatalities, which numbered over 300 in 2020, 2023, and 2025.

Legislative Framework and Future Plans

In June 2026, the Greater London Authority unveiled the Heat Ready London strategy, which aims to address the challenges posed by extreme heat. Alongside this, Hackney Council is mandated to ensure that tenants' homes remain cool by the end of 2026, reflecting a growing recognition of the need for legislative measures to combat overheating.

Community Impact and Responses

The effects of extreme heat have been felt across various sectors, with hundreds of schools closing during heatwaves and public buildings being urged to serve as 'cool hubs' for residents. The London Climate Resilience Review, published recently, underscores the need for comprehensive planning to enhance the city’s resilience against climate impacts.

Conclusion

As the risk of heat-related deaths continues to rise, the London Assembly's call for a mayoral plan is a crucial step towards addressing the urgent needs of Londoners living in social housing. With a significant portion of the population at risk, immediate and effective action is essential to protect health and wellbeing across the capital.