BLUFFTON Grob Systems, in Bluffton, is planning to add a $10 million, 45,918-square-foot building south of its existing plant.

The company has obtained a zoning and building permit for the three-story structure, just east of Interstate 75 and south of Ohio 103.

Attempts to reach the company for more details about the building and its construction schedule have been unsuccessful. But drawings of the building on file at the Bluffton Village offices show the first floor would have a cafeteria; the second floor would have sales offices; and the third floors use has yet to be determined.