Luxury houses (no longer): how to update the cadastre and cut the Imu cost
Average bill of 2,890 euro for prestigious main homes. From Piedmont's tax judges a glimmer of hope for a review of values. Milan, Florence and Genoa are the provinces with the most "noble" properties
by Dario Aquaro and Cristiano Dell'Oste
In a few days - on Tuesday 16 December - the Imu tax credit will also be answered by the owners of some 32,000 'stately homes'. Listed in the cadastral category A/1 and taxed even if they are main homes. They are only 0.1% of residential units, but cost their owners dearly. Between advance payment and balance Imu, the average is 2,890 euro for first homes (applying the 6 per thousand rate envisaged by many municipalities and the 200 euro deduction) and 5,459 euro for the others (with a 10.6 per thousand rate).
The owners of properties that, for various reasons, over time have lost the valuable characteristics assessed for the original registration are the ones who complain. Attempts to downgrade are frequent - so much so that the total number of A/1 properties has fallen by 11.4% in ten years - but often result in disputes with the tax authorities with uncertain outcomes. A ruling that could open up interesting avenues recently came from the Corte di giustizia tributaria del Piemonte (the 627/2/2025).
According to Revenue statistics, the provinces with the highest number of stately homes are Milan (3,757 A/1 units), Florence (3,643) and Genoa (3,391). The cadastral rooms are around ten and the estimated surface area over 200 square metres.
The capital city with the highest average cadastral income is Rome, 5,757 euro: a figure that translates into an annual Imu of around 5,600 euro (if a first home) or over 10 thousand (if a second). They are followed by Venice, Milan, Padua and Siena, all above 5 thousand euro average income.
If up to this point the data is not surprising, some perplexity about the attribution criteria arises when calculating the spread of A/1s compared to the other similar categories (A/2 and A/3): in the provinces of Florence and Genoa stately homes are eight times higher than the national average. And in the top ten there are surprises such as Prato, Biella, Vercelli, Taranto and Imperia. Moreover, the percentage of stately units located in the capital varies widely: from 1% in the province of Imperia to 97.9% in Prato.



