Me! said:....... Is there really anyone here who doesn't believe that this would have looked better if the front walls had lined up........
Yep. Me. Those extensions are all subservient to the original, are just fine in terms of massing, scale, location etc, and the set-backs are excellent. I would quibble with some of the details and the materials, and the nasty 1st-floor-on-a-prop on the right hand end, but the breaks in the wall line and roof lines are spot on.
and the roof had been thatched?
There is no reason in planning terms why the new rooves couldn't have been thatched*. However, there may have been Building Regs reasons (distances from adjacent properties is the standard one, but there are others). I personally would have preferred to see thatch. I built a new thatched house some 20 years ago, the first in a century in Essex, apparently.
*Some local authorities have never dealt with applications for new build/ extensions with thatch rooves, and have no policy on the matter. This means you might have to work harder to persuade them, but reference to those authorities who do allow it, and in particular to what is known as "The Dorset Model", will usually win the day unless there is an actual planning policy against thatch (which there might well be in dense urban settings, for instance).