[2] A total of 110 designs and models were submitted for the architectural competition for the new building announced by the Nuremberg Insurance Company in October 1992.

The building complex consists of a seven-story block perimeter development in the shape of a square, with the cylindrical office tower attached to one corner.

The main materials used for structure and glazing were reinforced concrete and glass, as the building displays a cylindrical shape with a diameter of 32.5 m and a total mass of approximately 50.000 tons.

[9] The block development is used primarily by the Nürnberger Versicherung, which also financed the construction of the building complex.

The space in the office tower is rented to various companies, including those from the insurance, auditing, online marketing, banking and finance, wholesale, legal advice, healthcare, building automation, IT consulting and maintenance sectors.

Full-surface silent cooling and draft-free ventilation ensure a healthy climate in the offices.

[10] Users can rent modern conference rooms of various sizes equipped with the latest technology (pay-per-use).

The two staircases are located in a separate shaft that extends from the façade in the northeast and forms the "backbone" of the otherwise cylindrical tower.

[2] Responsible for the construction were the architectural firm Spengler and the architects Dürschinger and Biefang from Ammerndorf, who designed the entire building.

The office tower has a double-glazed facade made up of around 1,600 individual parts with steel threads embedded in the glass.

There is a platform on the roof of the Business Tower at a height of almost 128 m. This is normally not accessible - not even for the employees who work in the building - but it is open to visitors on certain occasions organized by the Nuremberg Insurance Company.

[11] The Business Tower's double facade provides the basis for energy-efficient natural ventilation.

These intelligently recognize failure patterns, provide information and thereby increase system availability for the user.

Room users can also open the windows and flaps of the interior glass facade, which allows natural ventilation almost all year round without major heat loss or noise pollution.

The sun protection curtain behind the outer shell of the facade remains fully effective throughout the entire tower, even on windy days.

Modern drive technologies mean that the cold water is produced with significantly less electricity consumption.

[14] The building is called Business Tower Nuremberg because it is a name that is understandable beyond the borders (as described above, international offices are located in the BTN).