Architect Smith Mordak and other experts are calling for wider adoption of air conditioning in U.S. and UK homes during the current heatwave.
The debate centers on public health and safety as traditional cooling methods, such as open windows and fans, become insufficient during extreme temperature spikes. This shift in climate is forcing a reconsideration of building standards and government regulations regarding residential cooling systems.
In May 2026, the Conservative Party pledged to overturn rules that effectively act as a net-zero ban on air conditioning in new homes. These policy proposals aim to remove restrictions that have historically limited the installation of cooling units to meet carbon emission targets.
There is a significant disparity in cooling infrastructure between the UK and other regions. Approximately 90 percent of U.S. homes have air conditioning [1], while only about 20 percent of European homes have the technology [2]. This gap highlights the lack of preparation in European residential architecture for sustained high temperatures.
Planning rules remain a point of contention. While many homes do not require planning permission for permanent installations, certain exceptions still exist that complicate the process for homeowners. The current heatwave has intensified the argument that these restrictions should be lifted to protect vulnerable populations from heat-related illness.
Architects like Mordak suggest that the UK must adapt its housing stock to a new climatic reality. The tension remains between the immediate need for cooling and the long-term goal of maintaining net-zero energy standards for new constructions.
“The Conservatives have pledged to overturn what is effectively a net-zero ban on air conditioning in new homes.”
The UK is facing a conflict between its environmental commitments and the immediate necessity of climate adaptation. By challenging net-zero restrictions on air conditioning, policymakers are acknowledging that previous building standards may no longer be sufficient to protect public health during increasingly frequent and severe heatwaves.
