Creating 3D Isometric view of various structural elements in AutoCAD

Create the 3D View of the Building Façade as given in the plan and elevation

Create the ismoteric 3d view of a stair with railing as shown in the plan and elevation

Create the 3D view of a Wall with spread footing . Create the Door opening only. Assume the size of the parpaet and the coping. See the plans and elevation for the details