When Moshe Safdie designed Habitat 67 as an architecture student, he had a revolutionary idea: he used thousands of Lego pieces to test how the housing modules could fit together in three dimensions. Decades later, the architect himself still remembered that he emptied entire Lego stores in Montreal to build the models. And maybe that was the problem.
Reinvent the home like Lego. In the early 1960s, Western cities were caught between two models that seemed inevitable: huge impersonal apartment blocks or endless car-dependent suburbs. A young architecture student named Moshe Safdie believed there was a third way.
His idea was apparently simple and radical at the same time: build prefabricated homes by stacking concrete modules as if they were giant Lego pieces, so that each family could have light, a terrace, vegetation and the feeling of an individual house within a large urban structure. The project ended up becoming Habitat 67, the great futuristic icon of the Montreal Expo. What Canada presented to the world as the definitive future of cities ended up being one of the most fascinating and problematic works of architecture of the 20th century.
Habitat 67 was a utopia. The image of the building continues to look futuristic even today: 354 enormous precast concrete modules, each weighing about 90 tons, stacked in irregular shapes on an artificial peninsula facing the St. Lawrence River. Safdie was obsessed with solving a problem he considered central to the urban future: how to maintain the density of the city without sacrificing privacy, nature and the feeling of home.
Their motto was “For everyone a garden”. Each apartment had to have its own garden, cross ventilation, open views and elevated pedestrian streets instead of closed corridors. The inspiration came from both the village homes of the American Southwest and the Japanese metabolism that we talked about a few days ago, an architectural movement that imagined buildings made up of modular cells capable of growing and reorganizing like living organisms.
The big problem: making it cheap. The paradox of Habitat 67 is that it was born precisely to make urban housing cheaper… and it ended up costing much more than expected. Safdie imagined that industrial prefabrication would allow apartments to be mass-produced quickly and efficiently, but the reality was very different. The complex required an extremely sophisticated assembly system, a factory installed within the work itself, gigantic cranes and very complex technical connections between modules.
Each box had to leave the factory practically finished, with windows, wiring, bathrooms and kitchens incorporated before being lifted into its final position. The reduction of the original project (from 1,200 planned homes to just 158) increased costs even more. The experiment designed to democratize the city ended up becoming a complex that was too expensive even for the middle class it was intended to attract.
Leaks and mold appear. As time went by, the other great enemy of Habitat 67 appeared: water. The stepped structure full of terraces, gardens and joints between modules generated a waterproofing nightmare. The concrete began to leak constantly in Montreal’s extreme climate and water ended up penetrating walls and ventilation systems. Some residents reported serious moisture and mold problems for years.
Repairs were never simple because the building does not function as a conventional block: each module is a structural part of an extremely complex three-dimensional framework. Half a century later, restorations are still almost surgical. In the major rehabilitation carried out for the 50th anniversary, outer layers had to be removed, huge surfaces re-insulated and complete systems redesigned to protect the structure from Canadian winters.
From social dream to elite symbol. Another of the most striking ironies of Habitat 67 is its social evolution. What was born as a manifesto for accessible urban housing ended up becoming one of the most exclusive addresses in Montreal. The original rents were already prohibitive in the 1960s and subsequent privatization turned the apartments into luxury properties.
Today some units reach million-dollar prices and monthly maintenance costs are very high. The “city for all” ended up being an enclave for cultural elites, businessmen and architecture lovers. Yet even its critics admit that the building accomplished something extraordinary: demonstrating that dense housing could be emotionally distinct from the repetitive blocks that dominated modern urbanism.
He never completely died. The most fascinating thing is that, for all its problems, Habitat 67 continues to exert a gigantic influence on architects and urban planners. Decades later, it continues to inspire modular projects, terraced complexes and new ideas on how to combine urban density and quality of life. Even today’s digital tools have resurrected the original never-built project.
In recent years, Safdie Architects and Epic Games virtually recreated the gigantic “Project Hillside” that the Canadian government cut due to lack of money in the 1960s. Thanks to Unreal Engine, drones and hyper-realistic models, the architect was able to tour for the first time the complete version of the modular city he had imagined as a young man.
There is something deeply symbolic in that image: Habitat 67 was so ambitious that not even the technology of its time could make it fully viable. Maybe that’s why it continues to fascinate today. Because it seems like a relic of the past… but also a vision of an urban future that we still don’t know how to build without collapsing due to leaks, crazy costs and eternal repairs.
Image | Riverfront route – City of Montreal, Thomas Ledl, Vassgergely
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