Technical expert reports are asked for often and explained rarely. The code places them in two useful spots: it says which documents an intervention on an existing building must rest on, and it says who is barred from producing the report.
What goes into the permit dossier is on the PAC page. This looks at the regime for interventions, and at one incompatibility.
Interventions rest on documents, not opinions
Article 438 says interventions on existing buildings are carried out only on the basis of documents produced in accordance with the law, depending on their specifics, starting with diagnostic studies of the affected building.
The wording matters: it is not an optional list, and the starting point is the diagnosis, not the solution. A project that proposes the intervention before establishing the building’s technical condition inverts the order the text requires.
Who cannot produce the report
Article 435 paragraph (2) says the technical expert review of a project cannot be carried out by the same entity that produced the project being reviewed, whether that is the attested expert or the legal entity employing or subcontracting them.
It is the same independence logic the code applies to project checkers, covered in when a project checker is actually required. Two different roles, one rule: you do not check or review your own work.
What it is, as an activity
Article 437 paragraph (1) describes it as a complex activity comprising, as the case may be, tests, surveys, measurements of deformation and displacement, analyses and evaluations needed to assess the building’s technical condition.
That is where the duration comes from. A report requiring on-site testing is not delivered on the timeline of a written piece, and dossier planning has to treat it as an activity rather than a form.
What this article does not cover
We are not saying in which concrete cases an expert report becomes mandatory for a given building: that depends on the specifics of the intervention and on the technical regulations that apply, which are not in the code. We are saying only what the code requires as a starting point, and who is excluded from producing it. For the ground investigations that often accompany these dossiers, see geotechnical study or expert report. The document the expert works from, commissioned before them, is the measured survey.
This article is analysis, not legal advice. The provisions cited are from Legea 169/2026, published in Monitorul Oficial no. 661 of 10 August 2026. Check your own situation with the issuing authority.