Eoghan Murphy (Dublin Bay South, Fine Gael) | Oireachtas source

On the issue of a minimum of a C1 rating, some buildings will never reach it because of their age. I am informed that the Custom House is such a building and that one could never get it up to a C1 rating. I am reluctant to tie it to a specific grade but we can look at whether we can have a requirement of three points if it is at a certain grade, or of two points if it is at another grade, and to have a gradient to it rather than a jump of two points each time. I will look at that between now and Report Stage.