The Energy Savings Trust website has a questionnaire thingy that lets you work out how energy efficient your home is. At the end of the questionnaire it comes out with one of those tables that are starting to crop up on everything.
I went through the questionnaire twice, once for the house when we moved in, and once taking into account the changes we have made.
Quite bizarrely, the best I could hope for changed from B to C in the second run through. I shall have to have another play with it later and work out what I changed.
Now, the one remaining thing to do, as far as the EST is concerned, is to insulate my solid walls.
One of these labels has just appeared on a noticeboard in the Council House. That building was built about 10 years before my house, and somehow manages to have greater energy efficiency.