The chosen building for this project is located in the city of L'Hospitalet de Llobregat, Barcelona province. The building which consists of a ground floor, a floor and a ground cover type, was built to be the post and telegraph building in the city. It was no longer used since 5 years ago. The project has been separated in two parts: reform and change of use. First thing to do is making a study of it, both in its historical structures and physical conditions active today. After that, damages will be studied to create proposes in order to repair them, and the building has good conditions for its use. Then I will proceed to propose a new distribution, taking into account that the new activity of the building will be an educational institution. The project will be carried out thinking in its sustainability and economical attraction. It should take into account the constructive aspects, the current maintenance of the facade and the new use of it. Current appearance of the facade and the new use of it, due to requirements of the applicable regulations. The study of health and safety for the execution of the works, a budget and a viability study are included.El siguiente bloque del trabajo final de carrera contempla la reforma y cambio de uso del edificio del antiguo edificio de Correos y Telégrafos de L’Hospitalet de Llobregat. Definimos la propuesta del cambio de uso de la edificación para adaptarla al nuevo uso que le vamos a dar al edificio, un centro docente, concretamente una academia para adultos, teniendo en cuenta el estudio realizado en el primer bloque del proyecto. Comenzaremos realizando una memoria descriptiva y una memoria constructiva de los trabajos que se realizarán para la reforma. Incluyendo las nuevas instalaciones del edificio y todos los planos necesarios para la correcta comprensión de este proyecto. Se volverá a comprobar la estructura del edificio para conocer si es capaz de soportar las nuevas cargas. La reforma se realizará según las exigencias del Código Técnico de la Edificación, la normativa actual para cada las instalaciones y cualquier otra normativa necesaria para la realización de este proyecto.