The chosen intervention site is located in the centre of the city of Porto, in the north of Portugal. This is one of the most populated cities of the country, with a dense urban network and a high architectural contrast between old and recent buildings.
Our intervention area, which can be seen in figure 2, has less than 1 hectare, more precisely 9 857 m2. It is the outer area of the Trindade Metro Station, which is characterized essentially by being a modern building, an open square and a green roof covering the building. White line show us the trindade station, and red lines show us the intervention area. This interface is a very important infrastructure in the municipality, serving thousands of people every day. Besides the metro lines, which exists both on the surface and underground, there are also bus stops and several car parks. Inclusively, the Porto Metro, not only serves this city, the Trinity has connections with other municipalities that belong to the Metropolitan Area of Porto, such as Vila Nova de Gaia or Póvoa de Varzim, as shown in figure 3, which has as a consequence a dense use of this place.
This project was designed by the architect Eduardo Souto de Moura and its construction was completed in 2002, however, the actual construction does not correspond to the initial idea, because the building and the surrounding public space was never completely finished, giving the idea of being really a “forgotten place” or a “lost site” in the city centre that in fact remained unfinished for no apparent reason.