The principal of building a rail transit was passed by the Parliament of Denmark on 24 June 1992, with the Ørestad Act.

Initially, three modes of transport were considered: a tramway, a light rail and a rapid transit.

Stage 2 involved the establishment of the company Fredriksbergbaneselskapet I/S in February 1995, owned 70% by the Ørestad Development Corporation and 30% by Fredriksberg Municipality.

In October 1996, a contract was signed with the Copenhagen Metro Construction Group (COMET) for building the lines, and with Ansaldo for delivery of the trains and operating the system for the first five years.

[1] COMET is a consortium comprised Astaldi, Bachy, SAE, Ilbau, NCC Rasmussen & Schiøtz Anlæg and Tarmac Construction.

[2] Construction started in November 1996, with the moving of underground pipes and wires around the station areas.

In October and November, the two tunnel boring machines (TBM), christened Liva and Bette, were delivered.

The same month, the Public Transport Authority gave the necessary permits to operate a driverless metro.

In December, the tunnels were completed to Strandlodsvej, and the TBMs were moved to Havnegade, where they started to grind towards Frederiksberg.

From 1 January 2000, the S-train service from Solbjerg to Vanløse was terminated, and work to rebuild to metro started.

[4] Trial runs on the next section of metro, stage 2A from Nørreport to Frederiksberg, began on 24 February.

[16] Forum is the last station in Frederiksberg Municipality, but located only a few blocks from the Copenhagen borough of Nørrebro.

It is the main intersection with DSB's intercity and regional trains, as well as the S-train, serving lines A, B, C, E and H.[18] Kongens Nytorv lies at the heart of the commercial and cultural center of Copenhagen.

[16] Christianshavn is located on an island, a former navy base that has been redeveloped into residential and commercial mix.

It is named for DR Byen, the headquarters of the national broadcaster DR. Copenhagen Concert Hall is located adjacent to the station.

[22] Sundby is located close to a large recreational area to the west, a residential to the east and the psychiatric division of Amager Hospital.

In addition to numerous corporate offices and educational institutions, the area hosts Field's, the Nordic Countries' largest shopping center.