Never BornARCHITECTURE

Plan Voisin

Le Corbusier proposed clearing a large part of central Paris so eighteen glass towers could stand in open ground.

HOW CLOSE TO REALITY20/100
CATEGORYArchitecture
LIFECYCLE1925
00

Quick facts

Existence state
Never Born
Peak stage
officially announced
Research confidence
high
Last verified
01

What it was

Le Corbusier's publicly exhibited redevelopment proposal for the Right Bank of Paris.

Plan Voisin replaced dense historic neighborhoods with cruciform office towers, lower residential blocks, multilane roads and large areas of open space. Presented at the 1925 Exposition, it operated partly as an urban proposal and partly as a provocation advertising a new machine-age order.

02

Existence timeline

Urban ideas form

Le Corbusier presents the earlier Contemporary City model.

Plan Voisin exhibited

The Paris redevelopment is shown publicly with backing from the Voisin company.

Proposal rejected

No municipal construction program follows.

Principles travel

Related tower-in-park and road-planning ideas influence international redevelopment.

Detailed urban scheme

Plans, models and diagrams set out the proposed towers, roads and demolition area in central Paris.

03

Why it ended

Paris never adopted the scheme, and no implementation stage began. The city it targeted continued to evolve through smaller interventions rather than wholesale clearance.

04

Last confirmed trace

Original plans, models, publications and exhibition material survive in the Fondation Le Corbusier and major museum collections.
05

What it left behind

The unbuilt plan became both an influential modernist diagram and a cautionary symbol of top-down urban renewal willing to erase existing communities.

06

How we classified it

No generally obtainable public release existed; demonstrations, internal prototypes or archival fragments do not constitute public access to the proposed work.

The strongest verified milestone maps to officially_announced in Arrival Score V1.

07

Sources & verification

Last reviewed 2026-08-01. Sources are linked so readers can inspect the evidence directly.

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