The Delta Plaza is a 14-storeyed commercial and office building with one maintenance storey underground and a 4-storeyed parking house complete with a 1.5-storeyed underground part. Both the office building and the parking house are built on pile foundation. The load-bearing structure of the 14-storeyed office building is a pole-slab system of cast-in-situ reinforced concrete. The material of the poles differs across storeys. The walls of the elevator and ventilation shaft in the middle of the building are of cast-in-situ reinforced concrete with thickness up to 300 mm. The flights and landings of stairs are of prefabricated reinforced concrete. The volume of the cast-in-situ concrete work of the office building amounted to more than 6,560 m³. As to the parking house, the work volume of cast-in-situ concrete exceeded 3,350 m³. The floors resting on the ground (the underground part of the car park and the office building) were built of fibrous concrete.