Swedish property group Castellum is investing an initial SEK 167 mln (EUR 18 mln) on a mixed use project in the Atollen district of southern Swedish city Jönköping.

The project will fall under wholly-owned subsidiary Fastighets AB Corallen with construction due to start in January 2012. The work will be carried out together with two unnamed partners.

The first stage of Corallen’s part of the project consists of a total of 6,019 m2, of which 2,790 m2 is office, 2,212 m2 retail and 1,017 m2 residential. The first stage should be completed by July 2013, Castellum said in a statement.

Meanwhile, Castellum subsidiary Fastighets AB Briggen has acquired two fully let office/retail properties in Vibeholms Business Park in the Copenhagen area with a total of 10,191 m2. Both properties are situated close to Briggen's earlier acquisitions in Copenhagen. The investment amounted to SEK 160m.