Coordinates: 43°15′41″N 5°23′47″E / 43.261323°N 5.396261°E / 43.261323; 5.396261

The Unité d'Habitation (French pronunciation: [ynite dabitasjɔ̃], Housing Unit) is the name of a modernist residential housing design principle developed by Le Corbusier, with the collaboration of painter-architect Nadir Afonso. The concept formed the basis of several housing developments designed by him throughout Europe with this name.

The first and most famous of these buildings, also known as Cité radieuse (radiant city) and, informally, as La Maison du Fada (French - Provençal, "The Nutter's House"), is located in Marseille, France, built 1947-1952. One of Le Corbusiers's most famous works, it proved enormously influential and is often cited as the initial inspiration of the Brutalist architectural style and philosophy.

The Marseille building, developed with Corbusier's designers Shadrach Woods and George Candilis, comprises 337 apartments arranged over twelve stories, all suspended on large piloti. The building also incorporates shops with architectural bookshop, sporting, medical and educational facilities, a hotel which is open to the public, and a gastronomic restaurant, Le Ventre de l'Architecte ("The Architect's Belly"). The flat roof is designed as a communal terrace with sculptural ventilation stacks, a running track, and a shallow paddling pool for children. The roof, where a number of theatrical performances have taken place, underwent renovation in 2010. It has unobstructed views of the Mediterranean and Marseille.

Charles-Édouard Jeanneret, better known as Le Corbusier (French pronunciation: [lə kɔʁbyzje]; October 6, 1887 – August 27, 1965), was an architect, designer, urbanist,and writer, famous for being one of the pioneers of what is now called modern architecture. He was born in Switzerland and became a French citizen in 1930. His career spanned five decades, with his buildings constructed throughout Europe, India and America.

He was a pioneer in studies of modern high design and was dedicated to providing better living conditions for the residents of crowded cities.

Le Corbusier adopted his pseudonym in the 1920s, allegedly deriving it in part from the name of a distant ancestor, "Lecorbésier."

He was awarded the Frank P. Brown Medal in 1961.

He was born as Charles-Édouard Jeanneret-Gris in La Chaux-de-Fonds, a small city in Neuchâtel canton in north-western Switzerland, in the Jura mountains, just 5 kilometres (3.1 mi) across the border from France. He attended a kindergarten that used Fröbelian methods.