I am trying to find what the layback quantity is for a project that is located on the side of a a slope. The footings and foundation walls are at various depths and the slabs correlating with those footings are also various sizes and depths. I would like to daylight to either an existing surface or a design surface. The layback would be needed for safety reasons and to be able to quickly see if the sloped edge will go over the property line. See the attached image.