Select committee: Environmental Audit Committee
Conclusion 38
First report - Building to net zero: costing carbon in construction
Published 26 May 2022
Paragraph 213
Environmental Audit Committee Sustainability of the built environment All items in this report Report on parliament.uk ↗ Inquiry on parliament.uk ↗
Conclusion (the committee's words)
Retrofit and reuse of existing buildings, where practicable, should be prioritised over new build to conserve resources, minimise embodied carbon emissions, reduce demolition waste and deliver cost-effective solutions to delivering on housing demand. Local authorities and housing developers are expected to balance multiple objectives when meeting housing needs, and therefore require a coherent policy framework to support the balancing of retrofit and new, low-carbon housing delivery. The Government states it is promoting the benefits of re-using and retrofitting ahead of demolition, but we have seen limited evidence to demonstrate that this is yet the case. In some cases, reforms to permitted development rights appear to have created a perverse incentive for demolition and new-build over retrofit. We are concerned that the amendment to permitted development rights which allowed demolition and replacement was introduced without full consideration of its potential impact on sustainability and on carbon emissions. In our view, permitted development conversions should deliver low-carbon homes: regrettably, in some areas they have established a legacy of sub-standard properties that will need to be retrofitted in the future.
From: Environmental Audit Committee, First report - Building to net zero: costing carbon in construction (HC 103), paragraph 213, 26 May 2022
Government response
The government responded to the whole report on 30 September 2022 (deadline 26 July 2022).
Summary written by Accountability Index from the government's response. It is not the government's own words.The government agrees that whole-life carbon assessments are "likely to have a significant role" in decarbonising construction, but it does not commit to mandating them and says it will consult on its approach to embodied carbon in 2023.
- On a mandatory requirement, it "intends to consult in 2023" and will "consider" what levers, including building regulations, will be needed. It says it is "too soon to commit" to ratcheted carbon targets.
- It agrees a standardised calculation method is required and "will look at whether" endorsing specific standards, methodologies or tools "is appropriate".
- It declines to bring forward the Future Homes Standard to 2023, stating it "will not look to alter the timeframe" and that the 2025 timeline delivers on net zero commitments while ensuring homes are delivered in sufficient numbers.
- On public procurement, it says the Procurement Bill would not be an appropriate place for net zero policy priorities, and that there are "no plans to collect and publish" data on whole-life carbon assessments under the Construction Playbook.