Wrocław based Wrobis SA, a subsidiary of Mostostal Warszawa, has signed a deal with Archicom Cadenza Hallera Sp. z o.o. for the construction of a complex of three residential buildings. The new structures will be located at Hallera street in Wrocław. The contract is worth net PLN 80.8 million and it is scheduled for completion by the end of May 2010.