Gross floor area uk

Net internal area (NIA). It is very important when describing the area of a building to be clear about which measure is being use for example in planning applications , building regulation applications , property sales, lease negotiations , rating valuations , and so on. Average floor area , by dwelling type and age 3. What is gross floor area? How do you find the gross internal floor area?

You need to find the gross external floor area (GEFA) of your house – both upstairs and downstairs.

GEFA is defined as the area of a dwelling measured externally at each floor level. If you cannot measure outside, measure inside and add the thickness of the walls. You can measure either in feet or metres.

An integral garage would be included in this calculation. You now know the ground floor area. For upstairs, you may be able simply to double the ground floor area (if your house has two storeys, or treble it if you live in a three storey house).

If the other floor area is a different size then calculate the upstairs area separately and add the figures together. Perimeter wall thickness and external projections 2. Areas occupied by internal walls and partitions 3.

See full list on calculator. Columns, piers, chimney breasts and other internal projections 3. Porches and entrance halls within your flat 4. Internal stores, airing cupboards and the like 5. Service accommodation such as toilets, bathrooms and shower rooms 6. Conservatories GIFA Excludes 1. Common areas such as stairs, halls and landings 3. External open-sided balconies, covered ways and fire escapes 4. If you have a separate garage or a garage built on the side of the house, an allowance can be added to the rebuilding cost by entering the number of car spaces in your garage or garages. If you have any special features, such as a swimming pool, then you will need to make allowances for them separately.

The gross floor area is the total floor area (measured in square feet or meters) of all floors in the building that you would like considered in your valuation. This would include stairwells and elevator shafts, but would not include areas such as basements and mezzanines. If that same building was three-stories, the gross floor area would be 30square feet. If the first two stories were 10square feet each and the third floor was 0square feet, then the gross floor area would be 20square feet.

You do not need to enter the commas, the system will automatically put them in once you tab off the field. The total area within the perimeter of the outside walls. Thetotal floor area of a building,including all public and privatespaces.

Subject to sub-paragraph (b), for the purposes of regulations 1 2 and 2 the gross floor area of a building shall be the area contained within the external walls of the building measured at each floor level (including any floor below the level of the ground), together with the area of each balcony in the building, which shall be calculated from the overall dimensions of the balcony (including the thickness of the sides thereof), and the thickness of the external walls of the building.

Gross internal area Broadly speaking the whole enclosed area of a building within the external walls taking each floor into account and excluding the thickness of the external walls. This can include for example looking at the number of dwelling houses to be create the area of gross floor space to be created or the size of the site area. It is important to know the gross floor area for many reasons, such as acquiring building permits, determining rent and advertising with real estate companies. This area is the gross internal floor area , which means, it is the total area within the external walls of the building, as if there were no inside walls.

Calculate the area of each room by multiplying the length by the width. Insert the gross external floor area (see Measuring your home) in the box marked 'External floor area ' and select the appropriate radio button 'm²' or 'ft²'. The sum total is your gross internal area.

If you have the area of individual floors then click on the link for help in calculating the external floor area and a simple calculator will appear. In Hong Kong, the design and construction of private developments is subject to control under the Buildings Ordinance. In the approval of plans, GFA may be disregarded or exempted under the Buildings Ordinance and its allied regulations.