António Costa Lima Arquitectos designed a residential building next to Lisbon’s Águas Livres Aqueduct, an infrastructure built since 1732 to provide the city with drinking water. After the demolition of the pre-existing warehouse, By the Aqueduct project uncovers the Galeria da Esperança, a section of the historic aqueduct, now a monument to be preserved because of the numerous constructions above it.

The six-storey building is defined by a cream-coloured façade that seems to dematerialise as it proceeds westwards: on this side the cladding leaves space for the metal structure, which interrupts the regularity of the east part and creates a series of open terraces overlooking the city, just above the aqueduct. The interiors develop along a corridor that separates living room and bedrooms from restrooms, offering spaces covered with wood and sliding panels.