SBB owns and is driving the development of a new district in Nyköping. The Nöthagen area is being transformed from an industrial area into a new district with housing, trade, businesses and a school / preschool. In total, the zoning plan enables approximately 1,600 homes. New public squares and a large public park are included in the zoning plan. Parts of the industrial buildings of cultural and historical interest are preserved and combined with the new buildings. The meeting between old and new becomes an important part of Nöthagen's identity. In the area, new preschools, primary schools and also higher education such as upper secondary school or post-secondary education are planned. The housing units can accommodate elderly care homes, rent regulated residentials and condominiums.

“Nyköping is a growth municipality that is centrally located in the Mälardalen valley and will, with the expansion of Ostlänken, be an important part of the development in the Mälardalen area. With Nöthagen's location directly adjacent to the new railway station, the area will be attractive for both local and regional commuting. The development in the area is completely in line with SBB’s sustainability goals”, says Krister Karlsson, Deputy CEO of Samhällsbyggnadsbolaget i Norden AB.