The general law on administrative procedure and access to documents: it establishes how the public administration must act (terms, responsible officer, reasons) and the tools of simplification. For building it is the root: the SCIA, silence-assent and the services conference are born here.
It applies to the activity of the public administration and to relations with private parties: the start and conclusion of procedures, participation, simplification (SCIA, silence-assent, services conference), self-redress and access to documents. It is a general law: it yields only where special rules (e.g. the Consolidated Building Act) set their own.
Law 241/1990 is the general law on administrative procedure: it establishes how the public administration must act — with whom (the responsible officer), in what time (the term), how (reasons, participation) — and what tools the private party has. For building it is the root: the SCIA, silence-assent and the services conference are born here.
Every procedure must conclude with an express measure within a certain term; there is always an identifiable responsible officer. The measure must be reasoned. Silence or delay are not without consequences.
Art. 19 (SCIA) lets an activity start with a report, moving the control afterwards; art. 20 (silence-assent) makes the lapse of the term without a reply count, for many applications, as approval. They are the two mechanisms that lightened dealings with the PA, building included.
When a project requires the assents of several administrations (landscape, fire brigade, environmental, etc.), the services conference brings them together in a single venue and timeframe, avoiding the back-and-forth. There are different forms (preliminary, decision-making, simplified or simultaneous); the dissent of an administration bearing 'sensitive interests' has special rules.
The administration may annul its own unlawful act (self-redress), but not forever: within a reasonable time and, for authorisations or measures granting economic advantages, in any case no later than twelve months from adoption — a ceiling lowered from the eighteen months introduced by Law 124/2015 to the twelve of Decree-Law 76/2020, converted by Law 120/2020. The special regime for acts obtained through false representations of fact is unaffected. This is why even a SCIA, after the control terms, is not exposed indefinitely.
The law grants the right of access to administrative documents to those with a qualified interest (documentary access). Not to be confused with civic access, simple and generalised (FOIA), of D.Lgs. 33/2013: three different forms, each with its own conditions and limits.
Law 241/1990 is the framework that makes dealing with the State predictable: certain times, a responsible officer, a reasoned decision, tools of simplification and protection. For designers it is not theory: it is the law that decides whether and when a title forms, and how long it stays solid.
The building SCIA is a species of the general SCIA of art. 19; Law 241 sets its mechanism (immediate start, later control) that the Consolidated Building Act applies to building.
No: silence-assent operates in many cases, but not where environmental, landscape, cultural-heritage or health interests are at stake, or where an express act is required. The building permit is an exception since 18 December 2025: Law 182/2025 allows it to form by silence on constrained properties too, provided the protecting authorities' assents have already been obtained and are valid.
The tool that brings together, in a single venue and with defined times, the assents of several administrations, for projects that require many of them.
With self-redress it may annul an unlawful act within a reasonable time — and in any case, for authorisations or measures granting economic advantages, no later than twelve months from adoption. The ceiling was eighteen months under Law 124/2015 and was cut to twelve by Decree-Law 76/2020, converted by Law 120/2020. An act obtained through false representations of fact is an exception.
Documentary access (Law 241) requires a qualified interest; simple civic access concerns data subject to mandatory publication; generalised civic access (FOIA) is open to anyone, save exceptions.
Yes: every procedure must conclude within a certain term with an express measure, save the cases of SCIA and silence-assent; delay has consequences.