When a house is made into 2 flats and one is nuber 10 and the other then becomes 10a, is it usually the upstairs flat that becomes 10a, or the ground floor one? Or is there no rule and I'm talking complete tosh?
Basically, I want to send a letter to an old frind but can't remember if she lives at 10 or 10a. All I know is that it is a flat that looks like the upstairs of a house. It's a council property, if that makes any difference.
I don't have her phone number, she lives far away, I can't ask anyone else, and the letter is too personal for me to risk sending it to the wrong flat and someone she knows reading it!
So, is there anyway I can find out exactly what number she lives at or do I need to throw the letter away?