Disclosed aspects relate to design-model management associated with an architectural layout. A set of architectural objects may be ingested from a data source. In response to ingesting the set of architectural objects, a set of spatial zones may be determined. The determination can be made based on the ingestion of the set of architectural objects. In response to determining the set of spatial zones, a design-model of the architectural layout may be established. The establishment of the design-model can be based on the set of spatial zones.