An accurate description of the present improvements, and the additions or changes intended to be made under this application, indicating the size of such proposed improvements, material, and general construction thereof. In addition, there shall be attached a plot plan of the real property to be affected, indicating the location and size of the lot, and size of the improvements thereon, and proposed to be erected thereon, with such features, such as streams, watercourses, elevations, sinkholes, and generally such other features as are reasonably necessary to explain the problem. Said plan need not necessarily be professionally prepared.