Architecture / June 13, 2018 /
To adjust the land properly, the designer creates a grading plan to show how the topography will change to accommodate the building design. In other words, the contours are redrawn to remove soil, cut existing contour, or add soil, fill existing contour.
The preliminary design can begin once this variable is known. The topography map is much more detailed showing the contours and their accompanying numerical elevations of the site. It is actually a plat map with more complete and thorough details.