After regulation 27, insert—
Fabric energy efficiency rate calculations
(27A)
(1) This regulation applies where a dwelling is erected and regulation 26A applies.
(2) Not later than the day before the work starts, the person carrying out the work shall give the local authority a notice which specifies—
(a) the target fabric energy efficiency rate for the dwelling;
(b) the calculated fabric energy efficiency rate for the dwelling as designed; and
(c) a list of specifications to which the dwelling is to be constructed.
(3) Not later than five days after the work has been completed, the person carrying out the work shall give the local authority—
(a) a notice which specifies—
(i) the target fabric energy efficiency rate for the dwelling;
(ii) the calculated fabric energy efficiency rate for the dwelling as constructed; and
(iii) whether the dwelling has been constructed in accordance with the list of specifications referred to in paragraph (2)(c), and if not a list of any changes to those specifications; or
(b) a certificate of the sort referred to in paragraph (4) accompanied by the information referred to in sub-paragraph (a).
(4) A local authority is authorised to accept, as evidence that the requirements of regulation 26A have been satisfied, a certificate to that effect by an energy assessor who is accredited to produce such certificates for that category of building.
(5) In this Regulation, “specifications” means specifications used for the calculation of the fabric energy efficiency rate.