Regulation 25A: what it means for you and your new build

0630A perspective

A new regulation, Regulation 25A, has been introduced concerning the construction of new buildings.

According to Regulation 25A, before the construction of a new building starts, the builder/developer should carry out an analysis to determine the technical, environmental and economic feasibility of using high-efficiency alternative systems. In other words, a report should be compiled to show whether any of the following could be included, while still making the project cost-effective, environmentally sound, and technically feasible:

– Decentralised energy supply systems based on energy from renewable sources;
– Cogeneration (combined heat and power);
– District heating or cooling, particularly where it is based entirely or partially on energy from renewable sources;
– Heat pumps.

Before construction work starts, the developer must complete the report, and give the building control body (BCB) a notice to confirm that it has been undertaken and properly documented. The BCB can request a copy of the report if necessary.

Importantly, there is no requirement to actually install these systems once the report has been completed, if the target emission rates can be achieved in another way.

Regulation 25A came into effect on 9th July 2013, and applies to all work submitted after that date. However, projects are exempt from the regulation if they:

– Commenced work before 9th July 2013;
– Served an initial notice on or before 8th July 2013, and work commenced onsite on or before 9th;

A project has ‘commenced work’ when:

– A single foundation has been excavated;
– A length of drain or manhole serving at least one plot has been installed;
– A single raft foundation has been formed;
– A pile for a single plot has been installed.

To help builders and developers with the new regulation, NHBC Building Control has sent out forms which can be filled out and used as proof that the analysis has been completed. Our team is fully trained to carry out this report, and it can be incorporated into our Sustainability/Energy Statement package for an additional fee.

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