How is the floor area of a building calculated using FAR?

The correct method for calculating the floor area of a building using Floor Area Ratio (FAR) involves multiplying the FAR by the lot size. FAR is a zoning measurement used to determine how much building space can be constructed on a lot, and it is expressed as a ratio.

To understand this better, consider that FAR represents the total allowable floor area of a building in relation to the size of the lot. For example, if a lot has an area of 10,000 square feet and the FAR is 2.0, the maximum allowable floor area for the building would be 20,000 square feet (10,000 sq ft x 2.0). This formula allows planners and developers to understand the potential scale of a building project relative to the land available.

Other choices do not accurately represent how building floor area is determined in relation to FAR. Multiplying FAR by market value doesn't yield a calculation related to physical dimensions; it's a financial assessment. Meanwhile, calculating by multiplying lot size by assessed value conflates property measurement with financial evaluation, which is not relevant in this context. Lastly, adding market value to the FAR has no feasible relationship to determining the physical space a building occupies.