This includes railway stations, office buildings, terminals, and train maintenance facilities.

Jernhusen AB was established in January 2001 following the restructuring of Statens Järnvägar, previously operating as the division SJ Fastigheter.

Jernhusen's mandate from the state is to contribute to the development of stations and workshops and make them available to train operators, passengers, and other users on competitive and neutral terms.

Jernhusen's largest and most well-known properties are the central stations in Stockholm, Gothenburg, and Malmö.

A significant part of its business involves leasing station premises to shops, restaurants, and kiosks.