The Building License or building permit is an authorization which must receive, if you plan to build a new home, but also for several other works. So, apart from the construction of new housing, building permit needed for more activities, like adding a section to an existing construction, for extensive repair work or strengthening of a building, for the change of use of a structure (eg from residence to a workplace), to replace the roof and for the demolition of a building. In all these cases it not examined whether the building is located inside or outside the city plan, but each case requires a special permit.
Issued by the competent Service Construction (formerly known as Town Planning) and the application is accompanied by several documents and studies.