# The Building Regulations 2010, Regulation 26B: Fabric performance values for new dwellings

Extent: E+W

Where a dwelling is erected, it must not exceed the target fabric performance values for the dwelling which have been approved pursuant to regulation 25C(b) , applying the methodology of calculation and expression of the energy performance of buildings approved pursuant to regulation 24.

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Source: https://www.legislation.gov.uk/uksi/2010/2214/regulation/26B (the official version)
Page: https://openlegislation.uk/building-regulations-2010/regulation-26B
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.