15 floors
 Max. 35 persons
Iconic national monument. German watchtower in WWII and former office of the Gemeentelijk Energie Bedrijf (GEB). During the Rotterdamse Dakendagen, the observation post will be accessible to visitors.

Address: Rochussenstraat 400, 3015 ZB Rotterdam

The iconic GEB tower on the Rochussenstraat was built in 1931 for the Gemeentelijk Energie Bedrijf (GEB; Municipal Energy Company), according to a design by architects A. Poot, W.G. Witteveen and A. van der Steur. Until 1968, this 64-metre national monument was the tallest building in Rotterdam! In 1993, it was converted into a student flat.

During the Second World War, the German occupiers built an anti-aircraft observation post on top of the GEB tower, raising the height of the building with 7 metres and thereby reaching its current height. During the Rotterdamse Dakendagen (Rotterdam Rooftop Days), this extension is our own observation post and, from there, you can enjoy views over Delfshaven and the Nieuwe Waterweg.

On Saturday and Sunday at, urban historian Ferrie Weeda will tell you more about the eventful history of this building. This mini-lecture is free for anyone with a ‘Dakpas’ (Rooftop Pass).