What Is the Floor Area Ratio?

One. For buildings, the floor area refers to the horizontal projected area of the land occupied or used by the building's floor area. The calculation is generally based on the ground floor area. It is usually used to plan the building density of the plot. The calculation formula is: building density = land area / land area.

Area

Not only the area occupied or used by the building, other roads, rivers, trenches, etc. can also be used.