As the Building Designer involved in that project, you should contact my office before proceeding any further on this. That is a custom build we designed in coordination with the builder and homeowner for a residence on Torch Lake.
If you wish to get permission to move ahead you need to get ahold of us.
My Contact is
Steve Thomas
Thomas Building Design
231-498-2380
231-633-1107
steve@thomasbuildingdesign.com