ok,
he merely suggested it, he asked me if i didnt mind, secondly he only asked as he has nothing to support me if we were to live here. thirdly, its not worht that much, maybe les than 15,000 pounds, and fourthly, my parents offered to buy us a house here as in give a deposit and he refused and said we should do it ourselves.
finally, if we were to buy somehting 15,000 would be a small deposit, he would then be paying the mortgage for ever, so my 15,000 would be nothing to him paying a 100,000 pound mortgage,,,,,,,
Ok, so you have other valid points. Yes, 15,000 is nowhere near enough of a deposit at the moment unless the property is much less than 100k.
To be fair, if your parents can afford it, he should think about letting them pay the deposit and paying them back when he can. I'm sure your parents would much rather you have money from them now when you need it, rather than in the future as an inheritance. Maybe you can offer your parents back the land in exchange for them helping buy you a place, in your name, instead? That way it stays in the family.
I'm all for standing on ones own feet but sometimes pride just causes more problems than it solves.