Building structure discovery and display from various data artifacts at scene

An approach for developing information about a building of which little or no information is known at a time when firefighters need to enter the building. The approach may incorporate obtaining an image of the building from a publicly available resource. An outside boundary of the building may be determined from the image. The number of floors may be determined. A 3D floor plan may be generated from the boundary and the number of floors. Structural components may be added to the 3D floor plan, which are deduced from movements of firefighters, and the movements may be deduced from their locations. The locations may be transmitted by devices on the firefighters. Structural components of the building indicated by persons in the vicinity of the building may also be added to the 3D floor plan.