Making a 'Jelly Mould' of a building

[GeorgieB82]

Ok, I need to make a single basic entity (probably a morph) of a building to its extremities so it can be used as a representation in another project. It doesn't need to be detailed, it just needs to represent the shape and mass. Can anyone advise on a workflow to achieve this?

[Anonymous]

Select main building elements (Exterior walls, roof & floor) > Design > Convert selection to morpth