Floor Area Ratio (FAR) is tool used to regulate lot coverage and density. It is a ratio of the gross floor area in a structure to the land area of its lot. It is calculated by dividing the gross floor area by the total lot size. FAR accounts for the entire floor area of a building, not simply the building's footprint. Buildings with varying numbers of stories may have the same FAR value. For example, the FAR of a 1,000-square-foot building with one story situated on a 4,000-square-foot lot would be 0.25. A two-story building on the same lot, where each floor was 500 square feet, would have the same FAR. FAR limits for zoning districts in Brookline can be found in Chapter 5, Table of Dimensional Requirements.