Although city regulations required block development in the area where the Radost House stands today, you will not find a residential block there. The bold and radical approach of the freshly graduated architects Josef Havlíček and Karel Honzík convinced the jury in the architectural competition. Their design was chosen, showcasing the progressiveness of the client and the architects themselves. The building is innovative in its concept of providing air and light, which, thanks to its cruciform layout, reaches most of the offices for a significant part of the day. This could never have been achieved in a block development. The building radiates functionalism from all sides, and besides strip windows, one can also find period interiors. The facade is adorned with light tiles from the Rako brand, complemented by wooden window frames and blue accents. Radost House is often referred to as the first skyscraper in Prague because until 1937, it was the tallest building in Czechoslovakia.