Tell the city how the shop will actually be used.
For a parcel inside Kansas City, Kansas, start with the Unified Government’s review process. Its Development Review Committee handles specified commercial projects and multifamily buildings with three or more units; other construction is directed to Building Inspection. A private garage beside living space and a shop receiving customers are different proposals to describe. Explain equipment, employees, deliveries and any separate living unit before asking which review path applies. The word “barndominium” alone does not settle that question.
Official resources