Sustainability incentives
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The most recent revision of Conservation of fuel and power, Approved Document L of the Building Regulations, came into effect in 2021, and built on the significant changes made in 2010 and the 2014 revisions (with an update for work to existing dwellings only being added in 2018). Until 2012,...Explore the subscription options here to get full access to isurv, including downloads.
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