Sloe Gin - I think you are getting a little confused - census forms are delivered to households, not indviduals, and it is the duty a responsible adult living at that address to fill in the forms. As far as I'm aware, it is not the responsibility of the owner of the property, unless they are living there on the census date.
No, I understand all that. Perhaps I should have said
"Is this a first, having to
supply your details if you weren't at home on census day?"
If there is no-one living in the property on census night, then no forms have to be filled.
That's not how I read it. It asks who
normally lives in the property, and asks for the details of any such people even if they are away from the address.
Put it this way, if we all clear off to Dublin for a long weekend, and leave the house empty, will we still have to fill in the form and give our details? I think we do.