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Grigny (91) · report

Buy or rent in Grigny (91)

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
€1,398
Owning per month
€358

Try your own numbers

Starting from the median sale price of apartments, €1,087/m², and the asking rent of an apartment, €15.5/m² a month with charges (2025), in Grigny (91), and a mortgage rate of 3.2%.

Assumptions
90
3.2
1
Property tax (taxe foncière), insurance, maintenance and co-ownership charges.
3
What the deposit and purchase costs could earn if invested instead.
7
Notary fees and transfer duties, paid once.

Owning costs less each month than renting.

Rent a month
€1,398
Owning a month, not recovered
€358
Interest
€235
Running costs
€82
Return given up
€42
Cash out a month, if buying
€462

Gross rental yield in Grigny (91)

A year's asking rent as a share of the sale price, apartments, for each year the rent map was published. Higher means rent is dear compared with buying.

Show the numbers
PeriodGrigny (91)
202517.4%
202416.1%
202316.1%
20226.4%

The comparison counts only the costs of owning you never get back: interest, running costs and what the deposit and purchase costs could earn elsewhere. Loan repayments build equity, so they are left out. So is any rise in the home's value, because nobody knows it in advance. Rents here are asking rents with charges included, from the ANIL rent map, so they run a little above what tenants pay in rent alone, and the yield reads a little high.

Other reports for Grigny (91)

At the median sale price, a 90 m² home costs €107,640. With 10% down and a 30-year mortgage, the payment is €419 a month. The HCSF caps it at 35% of a household's income.

Payment, two incomes
15%
Payment, one income
31%

Figures for Essonne: Grigny (91) 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

In 2022 the population grew by 342 while 4 homes were started: 85.5 new residents for every new home.

New residents per new home, 2022
85.5
Population change, 2022
+342

10.2% of the 10,175 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.

Empty, 2023 census
10.2%
Empty homes
1,039

In 2025, 29% of the homes authorised were in existing buildings: conversions, extensions and changes of use.

Homes in existing buildings, 2025
29%