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Housing

In 2018, the most expensive residential street in Paris by average price per square metre, was Avenue Montaigne, at 22,372 euros per square metre. In 2011, the number of residences in the City of Paris was 1,356,074. Among these, 1,165,541 (85.9 percent) were main residences, 91,835 (6.8 percent) were secondary residences, and the remaining 7.3 percent were empty.

Sixty-two percent of buildings date from 1949 and before, with 20 percent built between 1949 and 1974. 18 percent of Paris buildings were built after 1974. Two-thirds of the city's 1.3 million residences are studio and two-room apartments. Paris averages 1.9 people per residence, a number that has remained constant since the 1980s, which is less than Île-de-France's 2.33 person-per-residence average. Only 33 percent of principal residence Parisians own their habitation, against 47 percent for the wider Île-de-France region. Most of Paris' population rent their residence. In 2017, social or public housing was 19.9 percent Paris' residences. Its distribution varies widely throughout Paris, from 2.6 percent of the housing in the wealthy 7th arrondissement, to 39.9 percent in the 19th arrondissement.

In February 2019, a Paris NGO conducted its annual citywide count of homeless persons. They counted 3,641 homeless persons in Paris, of whom twelve percent were women. More than half had been homeless for more than a year. 2,885 were living in the streets or parks, 298 in train and metro stations, and 756 in other forms of temporary shelter. This was an increase of 588 persons since 2018.