The operation will consist of energy efficiency improvement works in the Administrative building owned by the Xunta de Galicia located on Gregorio Hernández street, in the urban center of A Coruña. The construction dates from 1971. The intervention consists of a comprehensive rehabilitation of the building, one of the main objectives of the project being to improve energy efficiency. As a result, floors will be open aired or with light panel divisions, without any type of partitioning or cladding except for the technical premises and toilets. Complete demolition of the exterior cladding will be carried out, both on facades and patios; new openings in the facade will be made, completely renovating the exterior carpentry; an aluminum ventilated facade with aluminum carpentry will be placed; the roof will also be the subjected to reform; the communication nuclei will be reconfigured, the interior patio will be kept, and visibility and natural lightning improved, among other works.