On completing a loft conversion, am I right in saying that tax d'amenagement is payable as a one-off payment, in addition to the increase in annual tax d'habitation? I was aware of the tax d'habitation increase, but had overlooked the tax d'amenagement. Are there any personal or business circumstances that might make you eligible for a rebate / abatement / discount / etc etc ? I gather it is dependent on floor area. Thankyou.