Conservation of fuel and power: Approved Document L, Volume 1 — Dwellings

O N L I N E V E R S I O N R24-27C Regulation 25 Regulation 25 requires the Secretary of State to approve minimum energy performance requirements. These requirements are in the form of a target primary energy rate, a target emission rate and a target fabric energy efficiency rate. The targets are set out in Section 1 of this approved document. Regulations 26, 26A and 26C A newly constructed dwelling must be shown to meet regulations 26, 26A and 26C by producing calculations to show that the dwelling meets all of the following. a. Target primary energy rate. b. Target emission rate. c. Target fabric energy efficiency rate. Section 2 of this approved document sets out how to produce these calculations. Regulations 27, 27A and 27C Both before and after a newly constructed dwelling is built, a notice must be given to the building control body of the calculations. Building Regulations 2010 Approved Document L Volume 1, 2021 edition 9 O N L I N E V E R S I O N