Alejandro and Edgar Bueso-Inchausti and Pablo Rein from the Madrid studio of Bueso-Inchausti & Rein Arquitectos constructed this new multi-unit apartment complex for Martell Investments on a narrow plot of land on Paseo de la Habana overcoming a number of peculiar design challenges that made it difficult to find a satisfactory solution for the project: a small foot-print, enclosed between higher adjacent buildings and uneven terrain in the northern boundary.