Ecological surveys
Boulogne-Billancourt, Île-de-France
Ecological and biodiversity surveys in Boulogne-Billancourt: four-season fauna and flora surveys, VNEI, CNPN application, Natura 2000 impact assessment and the mitigation hierarchy (Avoid-Reduce-Offset, "ERC").
Updated 16 July 2026
Boulogne-Billancourt · Île-de-France
Ecological surveys in Boulogne-Billancourt.
In Boulogne-Billancourt, the ecological question arises in a very dense setting, where offsetting is practically impossible for lack of available land, which makes avoidance and reduction not only preferable but economically decisive. The stakes are concentrated on the banks of the Seine, the street trees and the parks, and on the protected species present in the existing building stock, which must be taken into account before demolition or major restructuring. Our ecologists carry out the building survey, the fauna and flora surveys, the ecological chapter of the impact assessment and the protected-species derogation application.
In Boulogne-Billancourt, the wealth of natural habitats (Natura 2000 sites, ZNIEFF, protected species) makes ecological survey work a structuring prerequisite for development. Four-season surveys, VNEI, CNPN application and the mitigation hierarchy secure environmental authorisation and planning permission.
Our services
Ecological surveys in Boulogne-Billancourt: what we do.
Four-season fauna and flora surveys
Ecological chapter of the impact assessment (VNEI)
Protected-species derogation application (CNPN)
Natura 2000 impact assessment
Mitigation hierarchy (Avoid-Reduce-Offset) and offset measures
Coverage area
Ecological surveys in Boulogne-Billancourt and the surrounding area.
Our teams travel from Aix-en-Provence to Boulogne-Billancourt and the neighbouring municipalities of the 92 department.
FAQ
FAQ, ecological surveys in Boulogne-Billancourt
Other locations
Ecological surveys across the region.
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