Two companies from the Mostostal Warszawa Group: Mostostal Warszawa and Mostostal Puławy were contracted by the City of Łódź to carry out the first stage of the construction of the multifunctional sports hall to be located at 2 Unia Lubelska Av. in Łódź. The contract worth ca. PLN 105 million was signed on 25 February 2008.