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Mennecy · report

People and new homes in Mennecy

In 2022 the population grew by 362 while 59 homes were started: 6.1 new residents for every new home.

New residents per new home, 2022
6.1
Population change, 2022
+362

Population change and homes started in Mennecy

The population's yearly change, apparent net migration plus births minus deaths, against homes started. INSEE and SDES.

Population change

Show the numbers
YearPopulation change
2022362
2021360
202042
2019377
2018613
2017360
2016149
2015211
2014300
2013465
201267
2011-217
2010-51
2009100
200868

Homes started

Show the numbers
YearHomes started
202259
20219
2020122
2019210
2018160
2017441
201642
2015157
201432
201314
2012—
2011—
2010—
2009—
2008—

Year by year

YearNet migrationBirths minus deathsPopulation changeHomes started
2008−15+83+68—
2009+21+79+100—
2010−120+69−51—
2011−288+71−217—
2012−33+100+67—
2013+385+80+46514
2014+230+70+30032
2015+151+60+211157
2016+63+86+14942
2017+296+64+360441
2018+533+80+613160
2019+283+94+377210
2020−8+50+42122
2021+255+105+3609
2022+293+69+36259

Births and deaths are INSEE's civil registration, by place of residence. INSEE publishes no yearly migration for places, so migration here is what is left of the population change once births and deaths are taken out, and each year's population is itself drawn from five years of census surveys: read it as a trend. France counts no homes finished, so homes started (SDES Sitadel) stand in; most are finished about two years later. A home houses a household, not a person: two or three new residents per new home is roughly one home per new household.

Other reports for Mennecy

At the median sale price, a 90 m² home costs €275,400. With 10% down and a 30-year mortgage, the payment is €1,072 a month. The HCSF caps it at 35% of a household's income.

Payment, two incomes
21%
Payment, one income
42%

Owning a 90 m² apartment costs less each month than renting it. Owning counts interest, running costs and the return the deposit could earn, at apartments' median sale price; rent is the asking rent. Repaying the loan is saving, so it is left out.

Rent per month
€1,568
Owning per month
€1,001

Figures for Essonne: Mennecy has no reliable figures of its own.

33.7% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.

Licensed, 12 months
5,659

4.4% of the 7,238 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.

Empty, 2023 census
4.4%
Empty homes
315

In 2025, 6% of the homes authorised were in existing buildings: conversions, extensions and changes of use.

Homes in existing buildings, 2025
6%