I have my doubts now. The nearby 5 is definitely correct, but the one I selected is shown as nr. 11 on other maps.
And there are very few address tablets.

If the cadastre map shows it's nr. 5 then I guess you're correct.

I haven't found a way to undo my change, but if you know how, please do. Meanwhile I'll try to find the address table if it's there, and post it if it's number 11 indeed (or do nothing if it's 5).