Building area is an important part of any construction project. It refers to the area where the building will be constructed, including the land and any other structures that are necessary for the building's construction. The two crossword solutions for the term Building Area are SITE (4 letters) and HALL (4 letters). SITE refers to the land or ground on which a building is constructed, while HALL refers to a large room or building used for meetings, events, or other activities.