You may well believe this is the case, but new build houses move because they are inadequately constructed, as I have said earlier, I have been involved with some very high end housing and any cracking of the internal plaster would not be tolerated, unseasoned timber used in timber frames and internal walls, probably deck cargo brought over from, who knows where, during the drying process of this timber probably causes excessive movement and hence cracking, something the RICS, ARIBA, ICE and ISE have been putting forward as the reason for cracking in Court cases for quite a number of years. My flint stone house is over five hundred years old is built straight off a chalk strata bed and has no foundations and has not moved or cracked anywhere.