The UK-based Peabody Trust has published guidance to help tenants protect themselves against extreme heat, a timely reminder that summer heatwaves increasingly test the resilience of the social housing stock. Yet the real question for the sector is not whether information sheets are useful—they are—but whether housing associations and social landlords can fulfil their responsibilities toward vulnerable tenants solely through advice, or whether they must invest in building-level interventions.
Information sheets as first line of defence
Peabody's guidance covers familiar ground: keeping blinds closed during the day, drinking plenty of water, avoiding heavy physical activity in peak sun hours. For many tenants, particularly older residents or those with pre-existing health conditions, such tips can make a measurable difference in comfort and safety. Public health data from the Office for National Statistics show that heat-related mortality spikes in July and August, predominantly among the over-65s living in poorly ventilated homes.
But advice, however sensible, has clear limits. It assumes tenants have blinds or curtains that block solar gain effectively. It assumes they have adequate water supply and electrical capacity for fans. It assumes they are physically able to follow the guidance. Social housing tenants are disproportionately represented in the health vulnerability categories, meaning the gap between advice and practical action is often wide.
Structural solutions: What landlords can realistically deploy
Several social landlords in England have begun piloting structural interventions that go beyond printed guidance. Reflective window film, external shutters, and roof insulation that reduces heat gain are among the lower-cost measures already trialled in estate renewal projects. Vonovia, the Germany-based housing giant, has applied similar principles in its UK portfolio, testing internal blinds with high reflectance ratings and upgraded ventilation systems in high-rise blocks. Yet deployment at scale remains rare, largely due to cost.
Heat pumps, which can provide cooling as well as heating, represent a more capital-intensive option. Under the UK's Boiler Upgrade Scheme 2026, landlords can access grants for heat pump installation, though upfront contributions and disruption during retrofit work remain barriers in occupied social housing. The scheme's focus on decarbonisation means cooling functions are a secondary benefit rather than the primary driver of uptake.
Passive design measures such as green roofs, improved cross-ventilation, and strategic tree planting around estates can also reduce indoor temperatures by several degrees. These interventions tend to be integrated into new-build or major refurbishment projects, making them difficult to retrofit into older tower blocks or terraced stock without substantial investment.
Regulatory ambiguity and landlord duties
Current UK housing law does not explicitly mandate minimum indoor temperature thresholds for summer months. The Homes (Fitness for Human Habitation) Act 2018 requires that dwellings are safe, healthy, and fit for occupation, but high indoor temperatures are not defined as a statutory defect unless they result from a specific building failure such as inadequate insulation or defective ventilation systems. This leaves social landlords in a grey zone: encouraged to act but not legally compelled to invest in cooling measures.
The Decent Homes Standard, which governs social housing conditions in England, focuses on thermal comfort in winter rather than summer. The Department for Levelling Up, Housing and Communities has signalled interest in reviewing this standard, particularly as climate projections indicate more frequent and severe heatwaves in coming decades. Until regulatory frameworks catch up, many housing associations will continue to prioritise energy efficiency measures designed for heating, not cooling.
Balancing cost, climate risk, and tenant expectations
Social landlords operate on tight margins, constrained by rent caps, maintenance backlogs, and capital investment commitments tied to net zero targets. A typical housing association in the UK spends between £2,500 and £4,000 per unit annually on major repairs and planned maintenance, leaving little headroom for new programmes that address emerging climate risks.
Yet the cost of inaction may be higher. Emergency call-outs for heat-related incidents, increased GP referrals, and reputational damage from media coverage of vulnerable tenants suffering in overheated flats all carry financial and social implications. Some sector experts argue that forward-thinking landlords should integrate heat resilience measures into routine cyclical maintenance, spreading cost over time rather than treating extreme heat as an exceptional event.
The ECO4 programme, which funds energy efficiency improvements for low-income households, does not currently cover cooling measures. Expanding the scope of such schemes to include heat protection would provide a funding route for social landlords without relying solely on rent revenues or borrowing capacity.
What tenants can reasonably expect
Tenants in social housing have a right to expect their landlords to maintain safe and habitable homes, a principle enshrined in statute and tenancy agreements. As climate conditions shift, the definition of habitability should logically expand to include protection from extreme heat as well as cold. This does not mean every flat requires air conditioning, but it does mean landlords should audit their stock for heat vulnerability, prioritise interventions in the most at-risk properties, and provide practical assistance—such as supplying fans or blackout blinds—when structural measures are not immediately feasible.
Information campaigns like Peabody's guidance are a useful and low-cost starting point, but they cannot substitute for building-level action. Landlords that rely solely on advice risk being seen as shifting responsibility onto tenants, particularly where tenants lack the resources or capacity to implement recommendations themselves.
Next steps for the sector
The UK social housing sector needs a coordinated approach to heat resilience that combines immediate tenant support with medium-term capital investment. This means securing dedicated funding streams, integrating heat protection into asset management planning, and engaging with government on regulatory reform. Landlords should also collaborate with public health bodies to identify high-risk tenant groups and ensure that vulnerable households receive priority for any interventions.
Peabody's guidance is a useful reminder that extreme heat is no longer an occasional inconvenience but a recurring risk for tenants. The challenge for landlords is to move beyond information sheets and commit to the structural changes that will protect their residents in the decades ahead.
