The Neuilly-Défense building, together with the Iris building, completes the project left unfinished by Henry Bernard as part of Manhattan Square. Henri La Fonta took over the project and designed an L-shaped building, centered around a rotunda. The residence offers large balconies and terraces on the top floor (more than 125 apartments are available). The white tile cladding—typical of buildings from the 1980s—and thick facades contrast with the smooth, glass facades of the surrounding office towers.

Before becoming an architect, Henri La Fonta first tried his hand at sculpture and painting. However, his training at the École Camondo led him to architecture. He gained his first experience in 1951 in Morocco as a collaborator, then returned to Paris in the 1960s. There, he worked for several design offices.

In 1977, he founded his own agency, which quickly made a name for itself thanks to the creativity and conceptual rigor he demonstrated in his work. In La Défense, Henri La Fonta was the main instigator of the office building revival in the 1980s. The business district owes him Les Miroirs as well as the Pascal and Voltaire towers.