It is not only the construction of apartments or houses that are declared to the tax authorities. Any modification of his accommodation such as a division, a meeting or an elevation must also be mentioned to the tax authorities who can then apply a new cadastral rental value.
Whether it is a new or soon to be completed apartment or the construction of a house, such a project must be declared to the taxes in the 90 calendar days (fresh and weekends included) following the end of the project. Similarly, major work within a dwelling must be declared to the tax authorities. The latter can thus update the amount of the tax, indicates 20 minutes.
What types of changes are involved? An elevation, even partial demolition of the accommodation, a division into several lots, or even the combination of two apartments into one, or on the contrary an extension, all of this must be declared to the tax authorities. An outbuilding that becomes a living room is also concerned, as when a property changes destination (a former business transformed into a dwelling).
A changing cadastral value
By modifying a building or land, its cadastral rental value changes. This serves as the tax base for property tax and housing tax. This rental value represents the level of theoretical annual rent that the property concerned could produce if it were rented, specifies the tax site. Any modification has therefore an impact on the rental value of the accommodation.
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To calculate this rental value, the tax authorities apply discount and revaluation coefficients according to the market, as well as the transformations made to the property. Inflation also has an impact on this calculation. This year, the cadastral rental bases will be revised by a minimum of 3.4%, which will result in an increase in local taxes.
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