As part of the revision of the natural risk prevention plan (PPRN), the prefecture services have set out in more detail the reconstruction conditions according to the risk zones.
Regarding new constructions, they are authorized under certain conditions in all areas except in the very high risk area. In these sectors highly exposed to marine submersion, only public and port infrastructures can be built. New constructions
In areas where the risk is low, new constructions are authorized on condition that they are located above the reference level of the area.
In areas where the risk is medium, new constructions (excluding hollow teeth) are authorized if they are part of "an urban renewal system taking into account a reduction in vulnerability" or in a "global development reducing vulnerability" . New constructions in the hollow teeth are authorized if the sleeping places are above the reference level of the sector.
In areas where the risk is high, new constructions (excluding hollow teeth) are authorized if they are part of "an urban renewal system taking into account a reduction in vulnerability" or in a "global development reducing vulnerability" . In hollow teeth, only new constructions without sleeping places are authorized.
By global development, it is necessary to understand “works which aim at securing an area subjected to an average, strong or very strong hazard in order to be able to continue its urbanization”. In other words, new constructions will only be possible in these affected areas if the Collectivity plans to carry out this work. If this is the case, the prefecture services will revise the PPRN by lowering the risk of said sectors. (soualigapost.com)
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