Model exported from SketchUp
When the model is exported for the first time, a view called “SketchUp camera” is added, which places the camera in the same position as it was in SketchUp when you started the export.
So, it’s best to start the first model export with the camera inside the building.
Import from other sources (Import .fbx .dae .obj button)
No view is created on such an import. And if you open a scene without any view the camera is placed in the “center” of the scene; by “center” we mean where the most of the meshes are.
Camera already far away from the building
To quickly move the camera you can increase the Camera speed in the Viewer tab.
You could also remove the “SketchUp camera” view, if this view is far away from the building. Then save and reload the scene. After reload, if there are no views, the camera should be in the scene “center”, most likely somewhere in the building.