i then created a glass material, and another material which is a grey/blue metal, these then become the materials used for the entrance.

a desk was also added to the building as there is one actually there, this was given a light wooden material.

The box which was created for the 1st floor was extruded and re-shaped to the actual shape of the decking. Stairs and a ramp was added to this, and a door was added to the rear of the entrance.