London Mayor Sadiq Khan has urged Ministers to improve plans for decarbonising the UK's built environment sector, claiming that the capital and other cities are already going further and faster in the face of the climate emergency.
In a letter sent to housing secretary Robert Jenrick, Khan points out that the proposed Future Homes Standard sets carbon reduction targets 25% lower than those detailed in the 2016 London plan. The Future Homes Standard is currently under consultation and is due to come into effect in the latter half of 2020, covering England only. In its current form, it includes a headline goal to reduce the carbon intensity of new builds by 75% by 2025, which ministers plan to deliver through fresh mandates for housebuilders on triple glazing, low-carbon heating systems, onsite renewable generation and energy-efficient building fabrics. The 75% target is down from an initial proposal of 80%.
In contrast, London´s "Zero Carbon Homes" standards mandates all new build homes to reach net-zero operational emissions by 2025.
Khan is also questioning the Government’s proposals to alter the 2008 Planning Act, in ways he claims would reduce local authorities’ abilities to set more stringent carbon requirements for the built environment than the national Government.
The built environment sector is regarded as one of the UK’s hardest-to-abate sectors, accounting for around 40% of national annual energy consumption and 33% of national annual emissions. Moreover, the UK Government has repeatedly been criticised for failing to deliver policy support for the decarbonisation of homes.
The Future Homes Standard is the Government’s main response to these concerns. For the wider built environment sector, Ministers are currently consulting on a requirement for all rented commercial buildings to be required to operate at a minimum energy efficiency standard of EPC band B by 2030; and the introduction of mandatory “in-use” energy performance ratings for all business buildings.
But all of these measures have faced stark criticism since their announcement. Last week, a group of leading architects and engineers said proposed policy changes would collectively result in a “step backwards, in a climate where we need a huge leap forward”.
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