What will be the ratio for Gross External Area vs Gross Internal Area vs. Net Internal Area for a 2 bed flat in the UK?
Hi Kathy,
Gross area is the total area within the walls of a building structure, including the walls themselves and unlivable space. When you see buildings listed as having a certain square footage, this number refers to net area, which is the gross area minus the structural area.
Thus, gross area includes the outer walls, interior walls, internal ducts and other internal spaces that would not generally be considered "living areas." To calculate gross area – click here – it is fairly simple process.
