Changing your windows: what administrative procedures?

Changing your windows: what administrative procedures?
Before changing your windows, you must check the PLU, file a prior declaration for work and, if you are in a protected area (ABF, classified perimeter), obtain the agreement of the Architect of Buildings of France.

Replacing your windows improves the thermal and sound insulation and value of your property. But any modification to your facades, even for single glazing, is subject to strict town planning regulations . Depending on the location and nature of your project, you must make a prior declaration , or even a building permit , and sometimes obtain the opinion of the Architect of Buildings of France (ABF) . At YesGlass , we guide you step by step through these steps so that your project complies with the regulations.

Check the Local Urban Planning Plan (PLU)

First of all, consult the PLU of your municipality (available at the town hall or online). It specifies the colors , materials and dimensions authorized for the joinery.

  • Residential areas : often not very restrictive
  • Protected areas : strict graphic and colorimetric requirements

If in doubt, make an appointment with the town planning department of your town hall.

Prior declaration of work

In most cases, window replacement requires a prior declaration (DP). This formality applies if you do not modify the floor area or the footprint of the building.

Documents to provide

  • CERFA form 13703*06 duly completed
  • Location and mass plans (implantation)
  • Plan of the facades before/after modification
  • Photographs of the existing building
  • Notice describing materials and colors

Processing generally takes one month . If there is no response after this time, your project is automatically accepted.

Building permit

If your modification results in an increase in floor area (> 20 m²) or affects a protected building , you must apply for a building permit (CERFA 13406*07). The processing time is 2 to 3 months , or even 6 months in a protected area.

Agreement of the Architect of Buildings of France (ABF)

For properties located near a historic monument or in a protected area, the ABF must give its opinion. Your file (DP or PC) is then transmitted, and you will receive:

  • Compliant opinion : work validated without reservation
  • Notice with prescription : modifications or choice of materials to be adjusted
  • Reasoned refusal : project to be reviewed

Best practices for a smooth process

  • Anticipate : submit your application 2 months before the start of work
  • Choose custom-made : provide material samples (wood, PVC, aluminum)
  • Call a professional : a glazier-carpenter can put together the file on your behalf
  • Check the condominium regulations : some condominiums impose additional rules

Conclusion

Replacing your windows isn't just about choosing the glazing: it's a project subject to strict urban planning regulations . Between PLU (Local Urban Planning Plan), prior declaration, building permits, and ABF (French Building Authorities) notices, the process can seem complex. With YesGlass , benefit from comprehensive support to submit your applications, choose compliant joinery, and obtain your permits quickly.

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