GBA (Gross Building Area) is calculated by measuring the outside of a building. Here's a breakdown:
Understanding Gross Building Area (GBA)
Gross Building Area (GBA) represents the total floor area of a building, measured to the external face of the outside walls.
Components Included in GBA Calculation:
- External Walls: Measured from the normal outside face of any enclosing walls.
- Balustrades and Supports: Measured to the outside face of these elements.
- External Features: External verandahs, balconies, and porches are included.
- Structural Columns: Structural columns are included.
- Balconies: Included in the GBA measurement.
- Upper Portions: Upper portions of rooms, voids, shafts, etc., are included.
Therefore, to accurately calculate GBA, measure the building's exterior dimensions, including all the elements outlined above.
