## What is the meaning of gross floor area?

Gross floor area (GFA) in real estate is the total floor area inside the building envelope, including the external walls, and excluding the roof. Definitions of GFA, including which areas are to be counted towards it and which areas aren’t, vary around the world.

## How do you calculate gross floor area?

Multiply the square footage times the number of floors in the building. Subtract the square footage of any elevator shafts, lobbies (other than on the first floor), or rooms that house only equipment used for the building’s operation. The result is the gross floor area.

What does gross building area include?

Gross building area: The area of the building from the outside of exterior walls, excluding unenclosed exterior spaces such as decks, patios, or balconies. Surface parking and landscape work is excluded from gross building area. Structured parking is included in gross building area.

What should I exclude from GFA?

Areas that that must not be included in the floor area: Exterior spaces • Balconies • Patios • Exterior Loading Docks • Driveways • Covered Walkways • Outdoor Courts (Tennis, Basketball, etc.)

### What is the difference between CFA and GFA?

(c) Construction floor area (CFA) includes all construction area in addition to the GFA, such as car parks, mechanical plant rooms, refuge floors, etc. This measurement unit is usually used for calculation of construction cost of a project.

### What is the difference between net and gross floor area?

Gross floor area: The total area of a building, calculated on a floor-by-floor basis, enclosed by the outer building’s outer walls. Net floor area: Commonly also referred to as “net area”, the net floor area is derived when the construction area, or the outer walls of a building, is deducted from the gross floor area.

What is the difference between GFA and built up area?

If it’s a 3-storey house, the built-up area is approx 3 x 700 = 2,100 sqft. Plot ratio is a factor used to derive the GFA (Gross Floor Area). Using the same example of 2,000 sqft land and plot ratio of 1.4, GFA = 2,000 x 1.4 = 2,800 sqft which is max permissible built-in floor area for the house.

What is the difference between building area and gross floor area?

Gross Building Area: Also referred to as Gross Construction Area by some, this is the total area of the building, measured to the outside walls without any deductions. As you’ll see later, some area definitions allow for certain deductions.

#### What is the difference between gross floor area and gross building area?

Building Area – The sum of the floor area of all floors in all buildings on a site. Unlike “Floor Area,” building area includes garages, carports, storage buildings, and other attached or detached accessory structures.

#### Are toilets included in GFA?

All voids & upper portions of rooms are NOT INCLUDED in FECA measurement. All voids & upper portions of rooms are NOT INCLUDED in GFA measurement. GBA measurement is to the normal OUTSIDE face of the external walls & supports.

Is roof included in GFA?

Private Enclosed Spaces and Private Roof Terraces to be included as GFA.

Does GFA include lifts?

Common “vertical circulation” such as lifts and stairs are expressly excluded from GFA.

## Is basement considered GFA?

It is the Total GFA (NOT the GFA based on the direct application of the FAR) that INcludes the floor area generated at basement levels.

## Does gross sf include exterior walls?

Gross Square Feet is the total area of enclosed space measured to the exterior walls of a building. This is an umbrella term that includes everything in a facility, even unusable spaces (think areas in between walls).

Does gross floor area include garage?

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. The basis for calculating GFA may vary between owner groups and sometimes the GFA excludes the parking garage.

What is the difference between GLA and GFA?

GFA, or gross floor area, is a similar metric that describes the square footage of the building out into the external walls. Gross floor area also typically includes outside walkways, terraces, and roofs. GLA, in contrast, only takes into account internal walls, and even then, not those shared with other tenants.

### Does gross floor area include stairs?

The floor area within the inside perimeter of the outside walls of the building under consideration with no deductions for hallways, stairs, closets, thickness of interior walls, columns, elevator and building services shafts, or other features, but excluding floor openings associated with atriums and communicating …

### Is swimming pool included in GFA?

Covered swimming pool is included as GFA.

Are walls counted in GFA?

The Gross Floor Area (GFA) is the total property square footage, as measured between the exterior walls of the building(s). This includes all areas inside the building(s) including supporting areas.

Does gross building area include basement?

(Finished basements and attic areas are not generally included in gross living area.

#### Does GFA include internal walls?

total area of all enclosed spaces measured to the internal face of the external walls. ‘ However, in many countries gross floor area is taken to be the total enclosed space including the external walls.

#### Is elevator included in gross floor area?

In many contexts, elevator shafts are also included in the gross floor area of each floor, so it’s probably safest to include them here. Correct, voids are not included. The floor area of that double height space is counted once on the floor where it is occupied.

What is the difference between gross building area GBA and gross living area GLA as defined by Fannie Mae?

The main difference between GLA and GBA is that below-grade living space is included in the GBA. Interior stairways, hallways, storage rooms and laundry rooms are part of the GBA. If the building has an exterior stairway, it is not included in the footage measurement.

What is GBA area?

GBA is measured between the normal OUTSIDE face of any enclosing walls, balustrades and supports. GBA measurement also includes external verandahs, balconies, porches & structural columns. Balconies are INCLUDED in GBA measurement.

## How does LEED define gross floor area (GFA)?

LEED defines Gross Floor Area as follows: “Generally, the gross floor area is the sum of the floor areas of the spaces within the building, including basements, mezzanine and intermediate-floored tiers, and penthouses with headroom height of 7.5 ft (2.2 meters) or greater.

Per the 2018 International Building Code, Chapter 2, Floor Area, Gross is “the floor area within the inside perimeter of the exterior walls…”

## What is the difference between gross area and regularly occupied area?

This is true in that I have different numbers listed for gross area and regularly occupied area in each space usage type because for the gross floor area I included the area for partitions, but for the regularly occupied I did not, essentially the regularly occupied area is a net area excluding the partitions. How should I revise this?

How does the IBC define floor area?

The 2018 IBC defines Floor Area, Net as “the actual occupiable area…” Again, concerned with how many people can actually be present within a space. You do not count corridors, stairs, ramps, bathrooms, mechanical rooms or closets. (Note: I have seen all these spaces counted on occupancy calculations and have it be accepted by the plan reviewers.