Officially the Bunker St. Pauli on Feldstraße was built between 1940 and 1942 during World War II by forced laborers. The distinctive turrets at the building's corners indicate that it was a so-called flak bunker, on which anti-aircraft guns were mounted. Inside were shelters for the civilian population. During the bombing raids on Hamburg, up to 25,000 people sought refuge there.
After the war, the bunker initially housed emergency accommodations; for a time, the Northwest German Broadcasting Corporation (NDR), the predecessor of the NDR, used the space.
Later, businesses, agencies, and music clubs moved into the massive concrete structure. The floors on the bunker's roof contain a hotel, a restaurant, and a multi-purpose hall with a capacity of up to 2,200 people. The conversion into the Green Bunker began in 2019 and was completed in the summer of 2024.


















































