When you subscribe to your insurance policy, you must declare the living area.
That is, to put it simply, the area mentioned in your lease (or on your papers when you purchase the property).
How to calculate the living area of your home?
👉 Measure the floor area of all your rooms without counting:
walls and partitions
surfaces under stairwells
the steps of your stairs
surfaces where the ceiling height is less than 1,80 m
non furnished attic
the basements
other outbuildings (garage, garden shelters...)
📌 Keep in mind that even if it is an estimate , the living area is a key information of your contract, so it has to be as exact as possible. You can read more on that here.
If you do your calculation precisely, you will not have any unpleasant surprises.
You can also call a specialist, but it is not mandatory.