Habitable attic, the requirements

Habitable attic, the requirements

Habitable attic: minimum height and requirements to make an attic habitable. Strategies for recovering an old attic.

Before moving on, let's clarify the difference betweenatticisattic. These two terms indicate the same structure but the difference lies in thehabitability. The attic indicates the surface of theattic made habitable. When we speak generically ofattic, this is not habitable.

The differences in meaning between attic and attic are also clear for the Treccani dictionary:


«Generic name of various types of accommodation, generally of small size, obtained in the attic; also superelevation in general, foreseen in the original project or added at a later time»


«Environment of a building between the top floor slab and the roof: the same as the attic and, sometimes, synonymous with attic (but only when it is habitable)».

Recovery of an uninhabitable attic

Having clarified the meaning of the term attic and attic, we can continue with the requirements suitable for transforming a not habitable attic in a habitable attic.

Each region has its own regulation and planread for the recovery of attics. The regulatory references for the recovery of the attic in the various regions are those mentioned in the list below:

  • - Abruzzo, LR 26 April 2004 n. 15 art. 85
  • - Basilicata, LR 4 January 2002 n. 8
  • - Calabria, LR 16 April 2002 n. 19, art. 49
  • - Campania, LR 28 November 2000 n. 15
  • - Emilia Romagna, LR 6 April 1998 n. 11
  • - Liguria, LR 6 August 2001 n. 24
  • - Lombardy, LR 11 March 2005 n. 12
  • - Piedmont, LR 6 August 1998 n. 21. Circular 25 January 1999 n. 1
  • - Sicily, LR 16 April 2003 n. 4 art. 18
  • - Veneto, LR 6 April 1999 n. 12

For example, the recovery of aattic in Milanor in other locations in the Lombardy Region, it can also be performed by changing the height. Modifications of the ridge and eaves heights and of the slope lines of the pitches can be increased but only within the limits of the maximum height of the buildings set by the town planning tool of the municipality of residence.

For therecovery of the atticyou can access therestructuring bonus and appliance bonuses with apersonal income tax deductionequal to 50% of both the expenses incurred for therecovery of the attic, and the expenses for the purchase of household appliances.

Habitable attic, requirements and height

Betweenrequirementsacts to distinguish anot habitable atticfrom ahabitable attic(attic), the height is shown.

The height to be able to talk abouthabitable atticdiffers between the various regions of Italy, plus in regional regulations it is expressed in the form ofaverage height. To make things even more complicated, know that the average height cannot be calculated in the same way because every regional regulation has instructions for this calculation.

For example, ahabitable attic in Calabriasees an average weight height of at least 220 cm as an essential requirement. In this case, the average height must be calculated by comparing the volume of the portion ofatticof height greater than 150 cm for its relative surface.

A habitable attic in Campaniamust have an average height of no less than 240 cm. The calculation is carried out by comparing the gross internal volume to the gross internal surface area, rooms with vaulted ceilings do not fall into this calculation example. For rooms with vaulted ceilings, the average height is calculated as the arithmetic average between the height of the shutter and that of the ridge of the vault itself. The height must be measured from the floor to their soffit with a tolerance of up to 5%.

Given the differences between the various regions, to talk about recovery of the attic, requirements for habitability and height, we found it necessary to attach a dossier dedicated to housing recovery.

Habitable attic, height and energy efficiency

The average height of ahabitable atticit ranges from a minimum of 2 meters (for Sicily) to a maximum of 2.40 meters. Generally, the regions do not allow the modification of the height of the ridge and eaves, nor the modification of the slope lines of the pitches, but some regions also allow this modification (see the Lombardy Region) in order torecover the atticand make ithabitable.

To obtain the average height, some regions allow interventions that go to lower the attic in order to comply with the minimum habitability requirements of the attic but without violating the minimum requirements for the habitability of the rooms below.

Not just height, to make ahabitable atticit will be necessary to comply with the rules laid down forthermal insulationaimed at containing energy consumption.

Video: Loft Conversion Start to Finish Timelapse (October 2021).