Ministerial response on improving standards for energy efficiency of new housing

I received a paper letter from James Brokenshire, Minster for Housing, Communities and Local Government, on energy efficiency in new housing – see here 

The main message is  – look out for a government consultation on this in 2019.   I ask myself – will action on its conclusions be in time for Manydown?  And will the final word, “affordable”, have unintended consequences?