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Real Estate: In Paris, the most modest households devote half their income to housing

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The Editor

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According to the Paris Region Institute, rents in the Île-de-France region have nearly quadrupled between 1984 and 2020. A dizzying increase that weighs more and more heavily on tenants, particularly the most modest ones, sometimes forced to dedicate up to half their income to their housing.

It's a figure that makes your head spin when you're hunting for housing in Paris or the inner suburbs. Recent studies are clear: median rents in the Île-de-France region have climbed relentlessly since the mid-1980s, growing far faster than household incomes. The result: finding a place to live has become an increasingly difficult financial burden… especially for lower-income families.


Rents multiplied by 4 in 35 years

Between 1984 and 2020, median rents in the private unfurnished rental market have multiplied by 3.8 in Île-de-France, and those for furnished rentals by 3.9. The social housing sector, meanwhile, saw comparable growth of around 3.6, but starting from a much lower baseline. More recently still, between 2014 and 2025, data from the Paris agglomeration's Rent Observatory shows a 13.7% increase in rents for all tenants, rising from 18.3 to 20.8 euros per square meter

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The gap is also widening between Paris and the rest of the region : in 2025, the median Paris rent exceeded that of the inner and outer suburbs by 9 euros per square meter, compared to a gap of 6.9 euros in 2014. A sign that pressure remains concentrated on the capital, despite real estate prices, which have begun to decline since interest rates rose in 2023.


An increasingly heavy burden for modest households

This surge in rents has resulted in a continuous increase in the famous "effort ratio", that is, the share of a household's income devoted to rent. It climbed 9 points between 1984 and 2002 for unfurnished rentals, before reaching a peak in 2013 (26.6 %), then declining slightly in 2020 (24.8 %). But unfortunately, these averages mask significant disparities.

The 25 % of most modest Parisian renters today devote nearly half their income to their rent (48.5 % for unfurnished and 50.4 % for furnished), compared to barely 17 % for the most affluent households. In Paris proper, a study even evaluates the median effort ratio at 34 % in 2022, with peaks at 39 % for single-parent families and 42 % for single women. The housing assistance therefore constitutes increasingly vital support for hundreds of thousands of Île-de-France households today.