What does the future look like?

Most commentators now agree on what needs to happen to dometic housing. In a nutshell:

1. New housing can and should be made carbon neutral, but new housing only makes up a small part of the housing stock that will exist in 2050, so the priority is to address the houses already built!
2. Heating will go almost entirely to heat pumps, probably mainly Air Source Heat Pumps, even for houses that are currently on mains gas.
3. This will have to be accompanied by massive upgrading of the insulation and air-tightness of buildings.