Institutional portal - Municipality of Milan

Works and modifications necessary to renovate and replace parts of the buildings, as well as to create and integrate sanitation and technological services, provided that they do not alter the overall volume of the buildings and do not lead to urbanistically significant changes in the intended use. Extraordinary maintenance interventions also include those consisting in the splitting or merging of real estate units with the execution of works even if they involve the variation of the surfaces of the individual real estate units as well as of the urban planning load provided that the overall volume of the buildings is not modified and maintains the original intended use; including the opening of internal doors or the moving of internal walls, provided that they do not concern the structural parts of the building.

Constitutive elements of the case provided for by law:

• do not alter the overall volume of the buildings and do not lead to urbanistically significant changes in the intended use
• do not modify the shape and elevations of the building
• do not concern the structural parts of the building

Administrative regime: 
CILA

Legislative reference:
Presidential Decree n. 380/2001, art. 3, c. 1, letter. b) and art. 6-bis