I was intending to convert the back section of our 3 car garage into a workshop. All I want to do is install a simple partition wall. (2x4, insulation, 1/2 dry wall, insulated door) The wall is non-load bearing. I spoke with one of the inspectors at the permit office and they told me I would have to break through the concrete, dig and poor a 4' footer under that wall. This is crazy. He told me I need to do this to avoid being in contact with the garage concrete which could heave as much as 2". The house is relatively new construction. I know concrete can expand and contract, but in that past 4 years of brutal winters, I've never seen it heave. Two inches seems a lot. He didn't offer me many solutions. Has anyone run into this when doing the same to their garage. Did they get a permit? If I don't put any electrical on that wall, can I avoid a permit? How can I challenge the permit office? Thanks to anyone that can offer advice.