Wronia 31 is the flagship project of developer Ghelamco, which has been awarded the BREEAM certificate at the highest level of "Outstanding". It is the company's tenth building to hold this renowned license and the second in the history of certification with such a high score in the Polish office market. The project was implemented in accordance with the principles of sustainable construction to maximize user comfort and satisfy future tenants. Wronia 31 is one of Ghelamco's leading green properties, and alongside it, the company's other projects such as Warsaw Spire and Wołoska 24 are also acclaimed. The building was completed in the third quarter of 2017 and offers almost 16,000 square meters of space, of which 15,150 square meters are offices and 850 square meters are retail and service units. A parking lot for about 250 vehicles has also been created for the benefit of drivers and cyclists, as well as locker rooms and new showers.