Edificio VDL 3532 / Arqtipo. Image © Federico Kulekdjian
In large cities, it is becoming increasingly common to find buildings that are capable of admitting different configurations and layouts in their internal spaces. Towards the end of the 1960s, duplex typologies began to appear in buildings in the city of Buenos Aires, when the Building Code allowed them to be located in the obligatory setbacks of the upper floors.