Line 4 (Athens Metro)

Προς Άλσος Βεΐκου/Γουδή
To Alsos Veikou/Goudi
Construction site at the TBM's entrance shaft in Katechaki, March 2023
Overview
StatusUnder construction
LocaleAthens
Termini
  • Alsos Veikou
  • Goudi
Stations15
Colour on mapOrange
WebsiteOfficial website
Service
TypeRapid transit
SystemAthens Metro
Operator(s)STASY
Depot(s)
  • Sepolia
  • Katehaki
Rolling stockAlstom Metropolis
Daily ridership530,000 (estimated)
History
Commenced22 June 2021 (2021-06-22)
Planned opening2029(Officially)
2030(Likely)
Technical
Line length12.8 km (8.0 mi)
CharacterDeep-level
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification750 V DC third rail
Route map

Planned section D
Petroupoli*
Ilion*
Pyrgos Vasilissis*
Nea Filadelfia*
Pefkakia*
Nea Ionia*
Alsos Veikou**
Galatsi**
Elikonos**
Kypseli**
Dikastiria**
Alexandras**
Exarcheia**
Akadimia**
Connection with
Kolonaki**
Evangelismos**
Planned section C
Pangrati*
Vyronas*
New Government Park*
Kaisariani**
Panepistimioupoli**
Ilisia**
Zografou**
Goudi**
Planned section B/E
Faros*
Filothei*
Sidera*
Olympic Stadium*
Paradissos*
OTE*
Marousi*
Pefki*
Lykovrysi*
Key
Line 4 (under construction)
Line 5 (planned)
non-passenger connector
(*) Planned     (**) Under construction

Line 4 of the Athens Metro is a future line that will run from Alsos Veikou to Goudi. Construction of the line started in mid to late-2021 and is scheduled to be completed in 2029 but is more realistically estimated to remain under construction until at least 2030.

Line 4 had been under consideration for many years. Its exact route was changed multiple times. One of the most famous routes was the U-shaped line from Perissos to Katechaki (which are current stations of lines 1 and 3 respectively), including a branch to Vyronas. However, the route from Alsos Veikou to Goudi was chosen, as it has the benefit of being the one passing from the densely populated areas of central Athens, such as Galatsi, Exarcheia, Kolonaki, Kaisariani and Zografou.

In the distant future, it will be extended further north to Lykovrysi and to other important suburbs of Athens, like Marousi.