This gives the building a special urbanistic emphasis. The façade is characterised by horizontally and vertically meandering elements that give the building a structure and rhythmise the façade. Along Caesarstrasse, these elements move forwards and backwards by around half a metre, creating a play of light and shadow that changes over the course of the day. The building has a three-dimensional and sculptural effect and appears different at every time of day and in every lighting situation. In the transition from the round corner to Bernhardstrasse, these meandering elements become increasingly prominent and turn into balconies or loggias. Facing west, they also act as passive solar shading for the receding façade.

The different character of the two streets - Caesarstrasse and Bernhardstrasse - is also emphasised by the design: While Caesarstrasse is a street with an urban character, to which the building forms a clear edge, Bernhardstrasse is a street with a suburban and more relaxed character. For this reason, the building is broken up more strongly here by the balcony construction. The balconies form a buffer between the building and the street. They connect the interior with the exterior. Towards the garden, the inner corner is also designed as a curve. The advantage of this is that neighbouring flats can no longer see into each other across the corner, thus creating an outstanding sense of intimacy. Private life can take place in a protected outdoor space.

The building is stepped back on the upper floors, creating spacious terraces facing all directions, with three materials taking centre stage in the design of the structure: the meandering elements and the balconies are made of reinforced concrete, which have a smooth, homogeneous surface as prefabricated concrete elements. Wood is used for the frames of the windows and exterior doors. The concrete is an ideal combination of a hard and a soft material, both of which are characterised by a high-quality tactile quality. The gable ends have a rendered surface that picks up on the rhythm of the main façade through its structuring, and there is a bungalow in the garden that offers optimal lighting due to its orientation to the south and west. With its location in the centre of the street block, its own access and a highly intimate living situation, the bungalow represents a unique residential idyll in the heart of the south of Cologne that is second to none.