Office and retail building Sonnenstraße, Munich

With its unique C-shape, the building encircles a large interior courtyard and takes maximum advantage of the natural light all year round. We developed our climatic concept by tracking the movement of the sun and analyzing the precise amount of light that penetrates the façade. The use of solar shading and glare protection elements as well as cooling systems ensure that the interior spaces are shaded and cool during the summer months.

The façade is defined by a series of alternating round and square columns; the former reminiscent of ancient colonnades and the latter made of solid concrete. An outer shell lined with folding glass doors is used for ventilation, transforming the main façade into a perpetually evolving image as these “wings” open and close to varying degrees. The materials we used further accentuate this multi-layered effect: brass-colored metal slats contrast with the light grey concrete of the outer shell.

The entire project was carried out as BIM planning (Level 2). The model-based working method with 3D visualisation increases transparency, optimises interface management and improves communication between those involved during all project phases. Overall BIM coordination was carried out throughout the entire planning and construction period – in addition to property planning, the specialist disciplines of structural engineering and building services engineering were also part of the BIM process.