Rent supplement: what are the rules?

When the lease has been signed since November 25, 2024 and the dwelling has special characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

You can estimate the base rent of the dwelling using this simulator:

Basque Country: Estimate reference rents for a lease signed since November 25, 2024

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease is due to be signed on November 25, 2024.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).

When the lease has been signed since July 15, 2022 and the dwelling has special characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

You can estimate the base rent of the dwelling using this simulator:

Bordeaux: estimate the rent reference reduced and increased

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease is due to be signed on July 15, 2022.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).

When the lease has been signed since 1^er December 2021 and the accommodation has particular characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

You can estimate the base rent of the dwelling using this simulator:

Eastern Territory Together: Estimating Reference Rents

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease must be signed on 1^er December 2021.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).

When the lease has been signed since 1^er march 2020 and the accommodation has particular characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

You can find out the amount of the rent increase in effect using this simulator:

Lille, Hellemmes and Lomme: to know the reference rents in force from April 1, 2025 to March 31, 2026

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease must be signed on March 1, 2020.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).

When the lease has been signed since 1^er november 2021 and that the accommodation has particular characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

The amount of the reference rent increased shall be fixed by order of the prefecture:

Lyon and Villeurbanne: reference rents from November 2024 to October 2025

Metropolis of Lyon

Pour en savoir plus

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease must be signed on 1^er November 2021.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).

When the lease has been signed since 1^er july 2022 and that the accommodation has particular characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

You can estimate the base rent of the dwelling using this simulator:

Montpellier: Estimate reference rents (lease signed since July 2022)

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease must be signed on 1^er July 2022.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).

When the lease has been signed since 1^er june 2021 and the accommodation has particular characteristics (location, comfort...), the owner can request a rent supplement.

The rent supplement is part of the rent.

In other words, the amount of rent (excluding expenses) consists of base rent (excluding charges) and rent supplement.

Base Rent Amount

The base rent entered in the lease must be at least equal to reference rent plus :

• which corresponds to the category of the dwelling (number of rooms, location, construction period, empty or furnished rental)
• and in effect on the date of signature of the lease.

You can estimate the base rent of the dwelling using this simulator:

Common Plain Territory: Estimate reference rents (lease signed since June 2021)

Characteristics of the accommodation

To apply a rent supplement, housing must have locational or comfort characteristics meeting the following conditions:

• Be decisive in comparison with dwellings of the same category located in the same geographical area (e.g. view of a historical monument...)
• Not already taken into account in setting the reference rent for the dwelling (which excludes in particular the number of main rooms and the time of construction of the dwelling)
• Do not give rise to recovery by the owner (or the real estate/notary agency) for expenses or energy saving works.

But for a lease has been signed since August 18, 2022, the rent supplement is prohibited if the dwelling has at least 1 of the following characteristics:

• Sanitary facilities on the landing
• Signs of humidity on some walls
• DPEDPE : Energy Performance Diagnosis Class F or G
• Windows that allow air to pass abnormally (without ventilation grate)
• Facing less than 10 m
• Outside infiltration or flooding
• Water drainage problems in the last 3 months
• Degraded electrical installation
• Poor exposure of the main room.

Lease

The lease must be signed on 1^er June 2021.

The lease must contain the following information:

• Amount of rent supplement
• Characteristics of the accommodation justifying the rent supplement.

In the event of a dispute over the amount of the rent supplement, it is compulsory to initiate a conciliation procedure, in order to be able to refer the matter to the judge, if necessary.

1. Registered mail (optional step)

If you are unable to speak to your tenant or landlord (or their representative), you can send them a registered mail with acknowledgement of receipt.

The letter must describe the facts as precisely as possible.

You must attach documents to support your remarks (legislation, photos...).

2. Conciliation (mandatory step)

The tenant must seize the Departmental Conciliation Committee (CDC) before appealing to the judge.

He must bring the matter before the CDC within three months of signing the lease.

The procedure is free of charge.

Before the CDC, it is up to the landlord to prove that the rent supplement is justified and to prove that the dwelling has particular characteristics of comfort or location, compared to dwellings of the same category located in the same geographical area.

If the CDC reaches an agreement, the amount of rent shall be that fixed by the conciliation document issued by the CDC. This new amount applies from the effective date of the lease.

If the disagreement persists, the tenant has 3 months from receipt of the CDC's notice to ask the protection litigation judge to cancel or reduce the rent supplement.

3. Refer the case to the judge

If the disagreement persists despite the intervention of the CDC, the tenant must bring the matter before the court within 3 months after receiving the opinion of the Conciliation Commission. He can refer the case to the protection litigation judge an application for cancelation or reduction of the rent supplement.

The rent (taking into account any additional rent) fixed by the judge applies from the date of entry into force of the lease (retroactive effect).