How do you calculate height on a residential home with several different roof heights on a sloping lot? Do you take an average of all the individual roof heights, an average of the grade, a midpoint on the roof between the eave and peak?
Our ordinance saysAnd then for Average Grade it saysBuilding height: The vertical distance measured from the established grade to the highest point of the roof surface for flat roofs, to the deck line of mansard roofs and to the average height between eaves and ridge for gable, hip and gambrel roofs. Where a building is located on sloping terrain, the height may be measured from the average grade.I have one architect that wants to use a combination of average grade and average height.Average grade: The ground elevation established for the purpose of regulating the height of the building. The building grade shall be the level of the ground adjacent to the walls of the building if the finished grade is level. If the ground is not entirely level, the average grade shall be determined by averaging the elevation of the ground for each face of the building. ("Average grade" shall also include "grade.")