# The Building Regulations 2010, Regulation 25C: New buildings: minimum energy performance requirements

Extent: E+W

Minimum energy performance requirements must be approved by the Welsh Ministers, calculated and expressed in accordance with the methodology approved pursuant to regulation 24, for—
(a) new buildings ..., in the form of target primary energy ... rates; and
(b) when a dwelling is erected, in the form of target fabric performance values.

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Source: https://www.legislation.gov.uk/uksi/2010/2214/regulation/25C (the official version)
Page: https://openlegislation.uk/building-regulations-2010/regulation-25C
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.