Because if you buy an {currency symbol of your choice}X house and borrow Y, where Y < X, all the people lending you care about is "is it worth Y?".
If you need a mortgage of 100K on a 500K house, for example, I'd not be surprised to learn that all the "surveyor" does is to look on Google Earth....
If you need a mortgage of 100K on a 500K house, for example, I'd not be surprised to learn that all the "surveyor" does is to look on Google Earth....