The extension of Line 1 (Green), which links Piraeus to Kifissia, will cost a total of 450 million euros, Nikolaos Kouretas, the company CEO, said at an infrastructure conference in Athens.

Attiko Metro is also preparing the extension of Line 2 (Red) to the southern suburb of Glyfada, by building three new stations and with a budget of 300 million euros.

Kouretas also said that the extension of Line 3 (Blue) from Aghia Marina to Piraeus will be completed by summer 2022.