The Committee on Climate Change (CCC) has urged the Government to improve the quality of UK homes to reduce greenhouse gas emissions
In a new report ‘UK housing: Fit for the future?’ the Committee on Climate Change has warned that the UK’s legally-binding climate change targets will not be met without the near-complete elimination of greenhouse gas emissions from UK buildings.
The report found that emissions reductions from the UK’s 29 million homes have stalled, while energy use in homes – which accounts for 14% of total UK emissions – increased between 2016 and 2017.
Efforts to adapt the UK’s housing stock to the impacts of the changing climate: for higher average temperatures, flooding and water scarcity, are also lagging far behind what is needed to keep us safe and comfortable, even as these climate change risks grow.
Around 4.5 million homes overheat, even in cool summers; 1.8 million people live in areas at significant risk of flooding; and average UK water consumption is higher than in many other European countries. Cost-effective measures to adapt the UK housing stock are not being rolled-out at anywhere near the required level, the report finds.
The report identifies five priorities for Government action:
Performance and compliance
The way new homes are built and existing homes retrofitted often falls short of stated design standards. This deceives householders and inflicts new costs in the future. Closing the ‘performance gap’ could save households in new homes between £70 and £260 in energy bills each year. In addition, widespread inspection and enforcement of building standards is needed, with stiffer penalties for non-compliance.
The chopping and changing of UK Government policy has led to a skills gap in housing design, construction and in the installation of new technologies. Important steps in reducing emissions are being held back as a result. The UK Government should launch a nationwide training programme and use initiatives under the Industrial Strategy’s Construction Sector Deal to plug this gap.
Retrofitting existing homes
Ensuring existing homes are low-carbon and resilient to the changing climate is a major UK infrastructure priority, and must be supported as such by the Treasury. Homes should make use of low-carbon sources of heating such as heat pumps and heat networks. Upgrades and repairs to existing homes should include plans for shading and ventilation, measures to reduce indoor moisture, improved air quality and water efficiency and, in homes at risk of flooding, property-level flood protection.
Building new homes
New homes should be built to be low-carbon, energy and water efficient, and climate resilient. The costs of building to tight specifications are not prohibitive, and getting the design right from the outset is far cheaper than retrofitting later. From 2025 at the latest, no new homes should be connected to the gas grid.
Finance and funding
There are urgent funding gaps which must be addressed, including secure UK Government funding for low-carbon sources of heating beyond 2021, and better resources for local authorities – particularly ‘building control’ departments. The UK Government must implement the Green Finance Taskforce recommendations around green mortgages, such as preferential rates for owners of energy-efficient and low-carbon homes and green loans to cover the upfront costs of home sustainability improvements.
Baroness Brown, Chair of the CCC’s Adaptation Committee, said: “This report confirms what we have long-suspected: UK homes are largely unprepared for climate change. The Government now has an opportunity to act. There must be compliance with stated building designs and standards.
“We need housing with low-carbon sources of heating. And we must finally grasp the challenge of improving our poor levels of home energy efficiency. As the climate continues to change, our homes are becoming increasingly uncomfortable and unsafe. This will continue unless we take steps now to adapt them for higher temperatures, flooding and water scarcity. Our report shows that this work has barely begun.
“Major improvements in how we design, build and use our homes are needed to meet these challenges. We have highlighted the need for appropriate sources of finance and funding – and a national training programme to ensure we have the building and construction skills required in the UK. Climate change will not wait while we consider our options – the nationwide shift we need to make UK homes climate-ready must start today.”
John Alker, Director of Policy and Places at UKGBC added: “We welcome the CCC’s wide-ranging report which looks unflinchingly at the breadth and depth of the challenge we face in decarbonising UK homes. With the Government rightly intent on delivering more and more properties to address the housing crisis, these homes must be delivered to high environmental standards.
“We must start by not making the problem worse, which is why UKGBC is calling for an urgent step-change in the energy performance of our homes, and all new buildings to be net zero carbon by 2030.”