Born from the independent and inventive spirit of João Araujo Sobreira, GOP was officially constituted in 1975, when J.A.S offers society partnership to his son João Maria Sobreira. thi, after João Araujo Sobreira abandoned collaboration with major construction companies and self-employed, a pioneer for its team.
In those hard times, J.A.S/he counted with the support of several technicians and among them his close friend and confident José de Souza Guedes stood out. With Eng. João Sobreira disappearance in 1995, GOP was organized with João Maria Sobreira asked at that time Mr. Jorge Nunes da Silva to strengthen his position in the society, a situation that currently maintains.
Over the last forty years GOP has evolved its structure in order to respond to the different realities that taken place, always with the aim of providing quality projects ad excellent service to their customers. The first office was located in the 15 November street, but with the development of the office it was necessary to seek new facilities, a building built from scratch in the Aleixo street, in order to accommodate several project companies, a project jointly developed by architects, Fernando Tavora, Siza e Eduardo Souto Moura was the solution, a nice area which is situated on a hillside facing the Douro River, where several project teams are active together.