How to reach PETRA III & FLASH

Construction sites 2021

CXNS construction site 2019

Construction site of the new CXNS building close to the PETRA III and FLASH experimental halls in July 2019 (Copyright DESY / R. Schaaf).

Due to construction work on the DESY campus, the traffic situation may change from day to day and we apologise for any inconvenience this may cause.

The number of parking spaces is, in particular close to the PETRA III hall (bldg. 47c), FLASH halls (bldg. 28c/28k) and the CFEL building (bldg. 99), very limited due to a few construction sites on this part of the campus.

The DESY gatekeepers know the latest status and can help you to find your way on the campus. The DESY side gate (Luruper Chausee) is usually open 24 hours a day for pedestrians and cyclists (it is open from Monday to Friday, 6 to 19h for cars), a bus stop is nearby.