Green Code is an innovative construction system for individually planned, sustainable buildings made of concrete. System components are industrially manufactured precast concrete parts, activated with technical components: statics - insulation - climate - acoustics - light. Thanks to the possibilities of industrial prefabrication of the building elements, Green Code can equip the walls and ceilings with technical elements in a variety of ways. The system uses walls and ceilings far beyond their purely static function - to increase the quality of living, comfort and optimize the energy balance. The Green Code System was developed based on decades of construction expertise and know-how and guarantees an energy-optimized, building with feel good atmosphere.