On Monday of this week I had a visit from a man from (I think) the ONS, to check whether or not I'd completed the Census.
I explained that I'd completed the one which was addressed to 'Lower Flat', I thought there little point in also completing the one addressed to 'Ground Floor Flat'.
He agreed, made some notes and left.
This morning the postman delivered another Census form addressed to 'Ground Floor Flat'