generate a clean accurate 3d architectural model from this floor plan maintain all original wall positions building lines proportions and geometry exactly as drawn extrude walls to correct heights apply roof forms consistent with the plan and preserve all openings door positions and window placements use the existing colours and materials shown in the plan keeping cladding trims and structural elements true to the original design make the cladding dark gray steel to the top 4m of the walls and precast concrete to the low 3m
