I have two statements in my notes, about a restaurant on the first floor. One is a neutral statement, one is talking about things on the first floor. I am not entirely sure of the context to use them in. Could somebody help please?
一階に レストランが あります - There is a restaurant on the first floor (neutral statement)
一階には レストランが あります - On the first floor there is a restaurant. (Talking about what is on the first floor).
I think the second example には might be used when discussing the first floor, and perhaps the conversation is about all the shops etc. there. But I am unsure.