A plan displaying the layout of improvements on a property site; a plot. The plot plan usually includes location, dimensions, parking areas, landscaping and the like.
A drawing showing a layout of improvements on a site, including their location, dimensions and landscapes. It is generally a part of the architectural plans.
A drawing or sketch showing the layout looking down on the site on which a sign is to be erected. A plot plan will commonly show such things as the sign's relationship to buildings, parking, pedestrian ways, etc. It is sometimes required to obtain a permit.