Castellum, a Swedish real estate company, offered to acquire Kungsleden, a long term property-owner, for SEK26.9bn ($3.11bn). "Through the combination with Kungsleden, we strengthen our position as the leading Nordic listed commercial property company, with focus on the most interesting growth regions. Together, we create a company with a well-diversified property portfolio, a strong customer focus and an attractive project development portfolio," Rutger Arnhult, Castellum Chairman of the Board.