Pal....do you have a "proper" address ? By that I mean a street name and a house number ?
In the course of my job, I have to find various addresses. In an urban situation, my Sat Nav will find 95% without any problem at all. But Sat Navs can only work properly if they have a specific address. If not, the Sat Nav will just take me to the centre of the postcode.
So a house name, even if there is also a street name won't let the Sat Nav do its work, and any delivery driver will have to drive up and down the street, trying to find a house name.....not always so easy.
I hope this helps !