Convert CAD diagrams to Visio files and add floor tile layout grid

We’d like to create some Visio drawings from some CAD files. We have 5 floors of a building depicted in CAD files and would like the following information depicted in the Visio diagrams as separate layers • Permanent structure (i.e. building envelope, stairs, internal walls) • Semi-permanent / removable structure e.g. offices • Furniture / Movable furnishings / desks • Floor tile layout grid We’d like to see how a single ‘conversion’ goes, rather than provide all the plans at once. If ok, this process will need to be followed for four more floors.