5 Crucial Terms Must Know Before Buying A Flat The cost of your flat is generally based on its saleable area. But there are many ways to explain and calculate the saleable area. This can have an enormous impact on – the actual area you get, or your total purchasing price. However, these terms are not certainly defined in any regulation book, knowing what they mean in order to help you: Built-up area Built-up area is the total area calculated on the…