Final answer:
The height of a large addition can vary depending on factors such as the number of stories, architectural design, and location.
Step-by-step explanation:
The height of a large (substantial) addition would depend on the specific requirements and purpose of the addition. If we are considering the height of a building, it can vary greatly based on factors such as the number of stories, architectural design, and location. For example, notable tall buildings in America can have heights ranging from a few hundred feet to over a thousand feet. A building like the Comcast Building in Philadelphia, Pennsylvania, is approximately 305 meters (1000 feet) tall. However, if the question is asking about the elevation in terms of distance off the ground, that would depend on factors such as the terrain, floodplain requirements, or local building codes.