plastic seats and is the oldest part of the current stadium. Construction cost NOK 2.8 million, which was largely loan-financed. Between 1980 and 1986, the area under the new grandstand was built to include new changing rooms, meeting rooms, offices and other facilities totaling . Some of the office space was rented out. After five years of planning, construction of a completely renovated stadium started in February 1999. To finance the stadium, a limited company, Åråsen Stadion AS, was established, and owned by the club, rather than by the limited company which runs the elite team. Only the East Stand from 1978 was kept. In 2000, new grass was laid on the pitch, replacing the original grass from 1950. This included installation of under-soil heating and an automatic irrigation sprinkler system. The new pitch had the dimensions . Combined, this cost NOK 12 million. The first new stand to be completed was the West Stand, which opened ahead of the 2000 season. In addition to luxury boxes, it consists of of commercial property, including a car dealer, a medical center and a restaurant. The investments at Åråsen cost NOK 800 million, of which NOK 240 million was used on the stadium itself. Other investments in the area were carried out by private investors and public agencies, who bought land from Lillestrøm SK. The training pitch to the north was demolished to make way for student housing for 100 people. The area to the west of the stadium was turned into a car retailer. Immediately surrounding the stadium was a complex of commercial and residential properties. This included a section to the north which consists of 96 apartments, some with balconies facing the pitch, and a grocery store. Construction of the South Stand and affiliated buildings started on 15 November 2000 and was completed ahead of the 2002 season. In conjunction with the stand was a commercial area rented by Akershus County Municipality, which hosts a psychiatric clinic for children and youth. Because of the stadium's close proximity to Kjeller Airport, the stadium is limited to a height of , which meant the upgrade could not incorporate floodlights. When mounted on four posts, the flood lights need to be above ground to give 1,200 lux on the field. In 2000, this caused Lillestrøm SK to have to play their home match in the 2000–01 UEFA Cup against Alavés at Marienlyst Stadion