The Högdalen depot will handle all trains from the Hagsätra branch line just as it does today. The depot will be enlarged to meet the need for more staging places for trains when the Metro is extended. Among other things a new garage is to be built below ground.
New tracks will also be needed in order to connect the depot with the Farsta branch line. The tracks will run below ground, through the new tunnel, and come up to the surface with one track north and one track east of Hökarängen Metro station.