Does a conservatory count as a floor?

Hello,
My first post in this forum and straight away a question that Dr. Google could not answer me in the slightest. I hope you can help us:
Does a conservatory and thus the area belong to the floor to which it is attached?
Or rather, what conditions must be met for it to belong to the floor?
The background is: whether our floor above is a full floor or not depends on whether a conservatory belongs to the floor below or not...

Thanks in advance.

Tappo

Winter gardens that are not heated can only be counted as half of the living space. Heated winter gardens count fully towards the living space.

This is stated on several websites.

Yes, thank you, I have read that too, but do they count towards the floor area of the story in which they are located?