The other thread is closed now due to comments from some posters. However, one idea mentioned was the joining of voices into some form of group. As with others, patience has now run out, the house is deteriorating rapidly and in front of our eyes. We can't engage with the builders for even basic remedial work to at least make things more comfortable and with a baby on the way and heading into winter, the huge gaps at the back of the house mean it is extremely difficult and expensive to maintain heat.
We've no interest in selling, just making the home we bought habitable for us and new family. We only asked for remedial work and were refused, essentially forced to begin legal proceedings. However, there is no interest in this politically even though there are serious issues presented by this problem.
I'm not sure this forum is the right way to go about this, but perhaps it is time to organise ourselves a bit more formally. The legal route has effectively meant everyone is pitted individually and isn't allowed to openly discuss their situation or even those lucky enough to have been provided remedial work. That said, I'd be happy to assist organising and lobbying as part of a group effort.
Probably best if those interested state so via PM I guess.