Wall To Floor Ratio Calculation

A reasonable ratio on central london offices is considered to be in the order of 0 40 with 0 35 and below being regarded as very efficient and significant.

Wall to floor ratio calculation.

This indicates the proportion of external wall required to enclose a given floor area. It is often used as one of the regulations in city planning along with the building to land ratio. What is wall to floor ratio. Excluded from the square footage calculation are unoccupied areas such as basements.

The floor area ratio far also known as the plot ratio is a measure of the total permitted floor area of a building in relation to the total area of the lot or plot on which the building stands. Gross floor area of all floors of the building area of the building lot far a higher ratio indicates a higher density environment. As a formula far gross floor area area of the plot. The wall to floor ratio of a building is calculated by dividing the external wall area by the gross internal floor area.

The floor area ratio accounts for the entire floor area of a building not simply the building s footprint. The smaller the ratio the more floorspace is created which in financial terms for a client would be rentable areas building aplan area 35m x 35mheight 35mstorey height 3 5mbuilding bplan area 22 5m. The terms can also refer to limits imposed on such a ratio through zoning. Floor area ratio far is the ratio of a building s total floor area gross floor area to the size of the piece of land upon which it is built.

Wall to floor ratiosthe following activity asks you to look at the wall to floor ratios and form afinancial comparison between two designs.