Leading energy consultancy BERcerts.ie has advised homeowners considering renovation projects to be aware of their potential obligations under Part L of the building regulations. The regulations set mandatory energy performance targets for dwellings undergoing “major renovation”.

That’s the question I want to ask today. I’m talking mostly about the situation in Ireland, because it’s the one I’m more familiar with things over here — particularly with regards to building regulations. But the same might apply to the UK.