Construction Authorization - CA - represents the document issued by the local public authority, based on which the applicant can carry out construction works. The construction authorization is issued by the Urbanism Service within the City Hall / sector where the land is located.

The issuing authority of the construction permit will establish a validity period of up to 12 months from the date of issuance and it can be extended by another 12 months, during which the applicant is required to start the works. In this situation, the validity of the authorization is extended for the entire duration of the execution of the works provided in the authorization, in accordance with the technical project.
Failure to start the works or failure to complete them within the established deadlines leads to the loss of the validity of the authorization, requiring the issuance of a new construction permit. If the characteristics do not change compared to the initial authorization, a new construction permit can be issued without the need for a new urban planning certificate.