Designed by the architect Gaston Castel, the J1 (J for Joliette, the name of the neighbourhood) is one of the two maritime buildings still remaining out of the five that were originally built. Today it represents the last significant part of the reinforced concrete complex making up the Joliette maritime terminal that was built by the Marseille Chamber of Commerce at the end of the 1920s.

The Port of Marseille Fos is undertaking work to restructure the Cap Janet international passenger terminal in order to accommodate all the North Africa traffic :

• 400 calls per year
• 500,000 passengers a year
• 200,000 light vehicles a year

Work began in September 2020 and will take 13 months