Amendments to Part L of the Building Regulations, giving effect to Nearly Zero Energy Building (NZEB) Regulations and Major Renovation Regulations, were published earlier this year. The regulations aim to make all new residential dwellings 70% more energy efficient than the performance requirements in 2005. In conjunction with this, amendments to Part F of the Building Regulations were published, which relate to ventilation. The NZEB standard is achieved, in part, through improved air tightness in a building.
The public consultation on the review of Part F and Part L of the Building Regulations took place from April 9 to June 8 2018. Over 1,000 comments/submissions were received, 303 of which were in relation to Part F. These were assessed and taken into consideration when Part F of the Building Regulations and the accompanying technical guidance was reviewed. These will be published on my Department's website over the coming weeks, subject to respecting any data protection and commercial confidentiality issues that may arise.