A fitted kitchen is not considered a single asset but consists of various components that are independent assets. A distinction is made between the sink and cooker on the one hand and the other kitchen elements on the other.
It still applies that a fitted kitchen can be considered an essential part of the building in exceptional cases. For this, the fitted kitchen must be permanently attached to the building and cannot be removed without damaging either part. This is assumed "if the fitted kitchen is integrated into the designated space and combined with the surrounding building walls (side walls and back wall)." In this case, the purchase costs are added to the building construction costs and depreciated at 2 per cent per year; the costs for a renewal are considered maintenance expenses and can be fully deducted as advertising costs immediately (BFH ruling of 1.12.1970, VI R 358/69).