Abstract
In this paper, design variations and influence on drawings in building projects are clarified. Therefore, the building projects carried out continuously by Design/Build Contract is adopted, and statistically analyzed the design variations by the drawings & specifications and the records of the building projects. Result as follows. Many of contents in design variations were not major changes about the whole building, but minor changes about the room arrangement and the finish material and equipments. And 14% of design variations in the implementation stage were not made into subject about the contents, and drawings & specifications were not shown in the design stage. And floor plan tends to be influenced of design variations. And the designer should be careful to explain about the room arrangement and the height &width of the door in detailed floor plan & interior elevation, and about the electric facility in the equipment drawings.
