Applying the same economy used in César's other films — one shot which uses the duration of an entire 16mm film reel — Porto 1975 is a tracking shot that unfolds at the social housing complex Cooperativa das Águas Férreas da Bouça, designed by Álvaro Siza Vieira as an integral part of the Ambulatory Service of Social Support (SAAL, 1972–76). The work's construction was initiated in 1975, but only completed in 2006.
