DN formular
DN formular
Editing for your building permit.
Our consultancy office can help you drafting this form where multiple building transformations are concerned.
- An individual analysis of your project.
- An adapted report to your needs.
- The experience of hundreds of projects.
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What’s the DN formular?
When submitting your planning permit, if your real estate project registers in one of the zones of the Long Term Development Plan (LTDP) of the Liège-Bierset airport or Charleroi-Brussels South, the DN form must be supplied as an annex to your permit. The noise areas concerned are shown in the images above.
The texts concerned originates in the Decrees of the Walloon Government of 3 June 2004 modified by the A.G.W. of 8 September 2005 of the town planning regulations on the acoustic quality of constructions in zones B, C and D of the long-term development plans of the airports of Liège-Bierset and Charleroi-Brussels South. More info
Who’s concerned?
It applies to buildings or parts of buildings intended for housing or accommodation of persons (studios, flats, boarding houses, student residences, hotels, care establishments, residences for the elderly, nurseries, day-care centres, schools and libraries), to be erected in areas B, C and D of the long-term development plans of the Liège-Bierset and Charleroi-Brussels South airports.
It actually concerns any new construction, modifications, transformations of the destination of a building or a part, implying an extension of the living space or an increase of the built volume.
The noise reduction is calculated for the soundproofing of night and day rooms for the zones located near the Liège-Bierset airport, while only the day rooms are concerned for the zones located near the Charleroi-Brussels South airport.
What’s its purpose?
In addition to the completion of your permit, the purpose of this study is to guarantee your project's sound attenuation levels in accordance with the regulatory values defined by the PDLT, by defining the acoustic properties of the materials to be used.
What do we need?
- To know the location of your project, its cadastral references.
- To have the plans (level plans, facades, sections) in computer format (e.g. pdf).
- To identify the composition of the different walls of the exterior envelope.
- To know the ventilation system that will be used.
Non-included services
This study only concerns the establishment of the DN form and the drafting of the associated report, the various acoustic components relating to the standard NBN S01-400-1, interior acoustic insulation, facades or any other part of the standard are not included.
How it works
Confirmation email after receipt and processing of the order.
The necessary documents and information are checked.
The necessary calculation are made by an experienced team.
The report and the DN form will be sent to you by email within of receiving all the information.
Where our lab is located
SGS Belgium SA
Parc Créalys
Rue Phocas Lejeune 4
5032 Les Isnes (Gembloux)
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