A multiple assignment is used in the real estate industry to find the optimal architectural design for a building project. Multiple commissioning is used in particular for an outstanding planning task or brainstorming. Competitions of this kind can be held in the field of urban planning and landscape architecture, regardless of whether it is a commercial or private construction project.
The best planning solution is to be found through the simultaneous multiple commissioning to different companies. Because despite some precise specifications, for example through a spatial plan and the city, there are still many options for structuring, constructing and designing a building. This planning process relates to quality as well as function, economy, social compatibility and sustainability.
The client usually decides for himself whether to commission a specific architectural office directly, whether a planning competition takes place or whether multiple commissioning takes place. In contrast to an architecture competition or a direct commissioning of a specific architecture office, multiple commissioning is always associated with high costs, since the effort of all participating architects must be remunerated accordingly.
A multiple assignment is not a common procedure for reasons of cost. However, it has been used in this high-rise project in the past: