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replacing velux in the attic


we will be performing some works in our house. it concerns replacing two velux in the attic and replacing backdoor and windows with pvc. none is directly facing the facade of the building and we have none back neighbours. is there any need to take permission or notify the commune?


Assuming that you live in Brussels, then you need to see the "urbanisme" regulations for the specific commune that you live in. The regulations are different depending on where you live. If you are going to change the materials i.e. from wood to PVC, (and possibly even the color) of door and window frames from what was originally agreed on the planning permission of the house when it was built, you need a new permission.

However, some communes don't apply the law, some do, and some have exceptions to the law allowing change under certain conditions.

Nov 17, 2017 10:49

Thank you Anon. I am checking Commune of Saint Gilles but I think they have district specific regulations. Our renovation is solely for energy efficiency purposes and nothing on the front facade. I should in anycase visit the Commune.

Nov 17, 2017 23:29

yes, please do ASAP as Saint-Gilles is since 2 years strictly enforcing buildings regulations!
Friends had to replace within their sales process 3 years old = 'new' windows, which had been fine under the old rules, but not under the newly set up ones.

Nov 20, 2017 10:49

We were told we by our architect didn't even beed permisssion in overijse to insert veluxes in a previously whole roof so i think it depends

Nov 20, 2017 22:48

I am told that for works not facing the main road things are more flexible.

Nov 21, 2017 15:23