The place is called Atelier Wolimierz, but it was technically located in the village of Pobiedna, Lower Silesia. Next to the old Wolimierz train station. I was there in 2014. They converted a small airplane hanger in a “earth ship”. The place was pretty wild though at the time, very anarchy vibes, but it was an amazing time. I learned some Polish there and later back home (The Netherlands) I met my Polish wife with this limited Polish knowledge. Have been to Poland many many times ever since! I would actually love to move there with my wife and our daughter.