Is my home an energy sieve?

A home is an "energy sieve" if its DPE is rated F or G (consumption > 330 kWh/m²/yr). Check your DPE on Mansard's tool or on observatoire-dpe-audit.ademe.fr.

When is a G-rated home banned from rental?

Since January 1, 2025, G-rated homes cannot be rented under new leases. Existing leases continue but rent cannot be increased.

What happens in 2028?

From January 1, 2028, F-rated homes will also be banned from rental. In 2034, E-rated homes will follow.

What aid is available in Mantes-la-Jolie?

MaPrimeRénov' (up to €20,000 based on income), Eco-PTZ (up to €50,000 interest-free), CEE certificates and 5.5% VAT. Île-de-France often has additional regional aid.

Mansard.

— Climate & Resilience Law · ADEME Open Data

Energy sieves in Mantes-la-Jolie : 14% du parc

In Mantes-la-Jolie, an estimated 1,905 homes are rated F or G — about 13.5% of the housing stock. These homes are already or soon will be banned from being rented under the Climate & Resilience Law.

F + G homes

1,905

13.5% of housing stock

Banned in 2028

1,905

Rental homes

Average G discount

-15 à -22%

On resale (tight market)

DPE distribution in Mantes-la-Jolie

Based on 14,068 DPE records.

5.0%

480.0%

5424.0%

3782.0%

2472.0%

1414.0%

491.0%

Mantes-la-Jolie vs national average

Mantes-la-Jolie : 13.5% F+G·France average : 16.2% F+G

Ban timeline in Mantes-la-Jolie

Estimated number of homes impacted by the Climate Law.

2025

G-rated rental ban

491

homes impacted (3.5%)

2028

F-rated ban

1,905

homes impacted (13.5%)

2034

E-rated ban

4,377

homes impacted (31.1%)

Check your home's DPE rating

Free tool, no signup. MaPrimeRénov' grants estimate included.

Check your home's DPE rating

How much does an energy renovation cost?

Going from F to E typically costs €250-450/m² (roof insulation + heating). Going from G to D requires €600-900/m² (full insulation + heat pump).

Calculate my MaPrimeRénov' grants

Other cities in Île-de-France

Paris Saint-Denis Boulogne-Billancourt Montreuil Argenteuil Nanterre

FAQ

Estimated 1,905 F/G homes in Mantes-la-Jolie — about 13.5% of the housing stock.

Data from ADEME open data (DPE Observatory) with national-average estimates when local data is unavailable. Mansard is not affiliated with ADEME or Anah.

Mansard.

— Climate & Resilience Law · ADEME Open Data

Energy sieves in Mantes-la-Jolie : 14% du parc

F + G homes

1,905

13.5% of housing stock

Banned in 2028

1,905

Rental homes

Average G discount

-15 à -22%

On resale (tight market)

DPE distribution in Mantes-la-Jolie

Based on 14,068 DPE records.

5.0%

480.0%

5424.0%

3782.0%

2472.0%

1414.0%

491.0%

Mantes-la-Jolie vs national average

Mantes-la-Jolie : 13.5% F+G·France average : 16.2% F+G

Ban timeline in Mantes-la-Jolie

Estimated number of homes impacted by the Climate Law.

2025

G-rated rental ban

491

homes impacted (3.5%)

2028

F-rated ban

1,905

homes impacted (13.5%)

2034

E-rated ban

4,377

homes impacted (31.1%)

Check your home's DPE rating

Free tool, no signup. MaPrimeRénov' grants estimate included.

Check your home's DPE rating

How much does an energy renovation cost?

Going from F to E typically costs €250-450/m² (roof insulation + heating). Going from G to D requires €600-900/m² (full insulation + heat pump).

Calculate my MaPrimeRénov' grants

Other cities in Île-de-France

Paris Saint-Denis Boulogne-Billancourt Montreuil Argenteuil Nanterre

FAQ

Estimated 1,905 F/G homes in Mantes-la-Jolie — about 13.5% of the housing stock.

Data from ADEME open data (DPE Observatory) with national-average estimates when local data is unavailable. Mansard is not affiliated with ADEME or Anah.