Hi pio2_122,

thank you very much! As you already said - it's difficult for a non-Pole. :)
However, I appreciate the time you spend to clarify this for me in this detailed form. Now I know better for the next time.

I wish you a pleasant day. :)

Hi @pio2_122,
afaik, there is no other "Streetname" here. I was surprised myself, but at the beginning of the small streets as well as on the buildings itself it's written like this: "Zastan 311" or "Zastan 300-349"

So for me, it seems to be the street name. Would you like me to provide a photo?