B3/B4 link work – B3 emergency staircase

Dear all,

As part of the work to link buildings B3 and B4, the central emergency staircase in building B3 will have to be temporarily closed for a period of three months from Monday, May 19, 2025.

During this period, it will no longer be possible to use it as an escape route.

In the event of evacuation, laboratory users are advised to use the following exits:

• The emergency exit on the south side
• The emergency exit on the north side

The signposting of escape routes on the floors of building B3 will be adjusted accordingly, in coordination with Mrs Emilie Elmaleh (see plan above).

We would like to thank you in advance for your cooperation and would ask you to pass on this information to all your staff.
In the meantime, please do not hesitate to contact us if you have any questions.

Best Regards,

HORIZON NORTH SA