- NEW RAILWAY Station: In progress are works related to the reinstatement of the surrounding area of the forestation, works related to the construction of the west shaft, the installation of the lighting system in technical rooms, the construction of earthing and works for the construction of fire dampers.
- DIMOKRATIAS Station: In progress are works for the construction of vertical lining using aluminum panels in public areas, works for the installation of the fire detection system, as well as works for the installation of the access control – intrusion detection system.
- VENIZELOU Station: Completed are works for the installation of platform screen doors, the installation of the tunnel ventilation system air ducts at the ceiling of tracks 1 & 2 area, the installation of signaling and telecommunication equipment in the respective technical rooms, as well as the layering of granite slabs at the sub-base of the ticket issuing level floor. In progress are works for the installation of doors at the technical rooms and platform levels, the construction of raised floors, works for the installation of the air ducts of the ventilation/air conditioning system in the technical rooms of level -3, works for the installation of electrical grids and cables at the E/M and concourse levels, works for the connection of the switchboards of the telecommunications and signaling systems, works for the construction of the water supply, sewage and firefighting systems, as well as works for the construction of the permanent lining and undisturbed cut for the connection with the main station of the north and south access. In progress are works for placing back and preserving the archaeological finds/units at level -1.
- AGIAS SOFIAS Station: Completed are the works for the installation of the glass panes of the stainless steel balustrades in public areas, granite slab lining works at the floors of the platform level and the remaining public areas, vertical marble cladding works inside the station, escalator cladding works at the accesses and the installation of false ceilings at level -1 and at the Station Master Room. In progress are works for the construction of false ceilings at level -2, works for the installation of vertical steel lining at the platform level and the remaining public areas, works for the construction of the shed at the north access, reinstatement works in the area of Makedonomachon Square, as well as works for the installation of cable trays and the connection of escalators.
- SINTRIVANI Station: In progress are tests in all E/M systems installed.
- PANEPISTIMIO Station: In progress are aluminum panel lining works in public areas, steel panel cladding works at the escalators inside the station, and tests in all E/M systems installed.
- PAPAFI Station: In progress are works for the installation of glass panes at the station sheds and tests in all E/M systems installed.
- EFKLIDIS Station: In progress are tests in all E/M systems installed.
- FLEMING Station: In progress are tests in all E/M systems installed.
- ANALIPSI Station: In progress are works for the construction of fire dampers, the installation of inlets of the ventilation/air conditioning system, preparatory works for the construction of the shed and tests in all E/M systems installed.
- 25 MARTIOU Station: In progress are aluminum panel lining works, works for the installation of lighting fixtures in public areas and tests in all E/M systems installed.
- VOULGARI Station: Completed are works for the construction of fire dampers. In progress are works for the installation of the cabling of the BACS system, as well as tests in all E/M systems installed.
- NEA ELVETIA Station: In progress are works for the installation of the power distribution system cables, works for the connection of the equipment of the ventilation/air conditioning system, works for the installation and connections of the cables of the jet fans at the tunnel extending between the station and the Depot, as well as tests in all E/M systems installed.
DEPOT
- Building Complex Ι: With regard to the E/M installations, in progress are works for the installation of the equipment of the access control – intrusion detection system, as well as works for the installation of the power distribution system at building 8.
- Building Complex ΙΙ: With regard to the Administration Building and the Control Centre, in progress are woks for the installation of false ceiling using mineral fiber tiles, works for the installation of glass panes at the interior aluminum panes, works for the installation of stainless steel lining on the walls of the lifts in all levels, as well as slab paving works at the central yard. In Building 2, completed are works for the construction of industrial flooring at all levels, while in progress are painting works, works for the installation of wooden doors and ironmongery works, works for the installation of ceramic tiles at the track maintenance building, works for the construction of gypsum board lining and partitions at the kinder garden and in the central guard house, insulation works at the building of the kinder garden, as well as works for the construction of balustrades at the outdoor staircases. With regard to E/M works, in progress are works for the installation of the BACS and the telecommunication systems, works for the installation of the power supply distribution system and works for the construction of the earthing, installation and connection works of the LNC5-01 lighting switchboard at level +62,30, works for the installation of air ducts, sprinklers and fan coil units, insulation works of the air conditioning ducts and works for the installation of water supply and sewage systems in Building 4. In the surrounding area, in progress are wall painting works and works for the construction of the new entrance for train transportation.
- TRACKWORK: The works for the construction of the trackwork and the installation of the 3rd rail in the entire project have been completed.
- In progress are testing and commissioning works.
