The average cost of architectural drafting is between $1000-$6000, depending upon the plans and requirements of the project. Draftsmen use various tools such as AutoCAD or Revit to generate the blueprint designs. The cost also depends on the story level of the building, whether you need a floor plan for a 2-story, 3-story, 4-story, or more! The more the number of floors, the higher will be the overall cost!