Thank you for the responses, didn't expect such swiftness! Any comment is constructive, no matter how tough it sounds (Beaker!)
To put it in perspective, the house is worth £400k. My son and I have been putting money aside for years, so with deposit paid, the mortgage is about £280k. The same house sold in Summer 2003 for £360k.
The KeyFacts shows that by the end of the term, £1.84 is paid for every £1.00
The house they're buying, (unfortunately!) is oh so perfect for them. It's in a nice little neighbourshood right next to a Chinese school (my future daughter-in-law being Chinese, they would like any kids to go there).
Regarding the more-than-one comment about it would be worthing waiting till next year. Obviously the name of this forum shows that there is a bias as to house trends, but my son and I have been stalling forever - Surely the bullet has to be bitten at some stage otherwise where will it end... to me it's just a stress that has to be endured.