The 155-meter tower Skysawa, which is the second building developed by Polski Holding Nieruchomości (PHN) in an office and retail complex located near the ONZ roundabout in Warsaw, received the BREEAM Interim sustainable construction certificate at the Outstanding level. A high-rise building with an area of approximately 34.5 thousand square meters sqm It is located at 36 Świętokrzyska Street, in the place where an office building from the 1960s used to stand.