Bat roost mitigation for buildings

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How you can help us
There is a lack of evidence on the effectiveness of mitigation and compensation strategies for bats affected by development.

The Chartered Institute of Ecology and Environmental Management in partnership with the University of Exeter, and the Bat Conservation Trust have both secured funding for separate but complementary projects to fill this evidence gap.


The success of these projects is strongly dependent on receiving mitigation case studies from ecological consultants through to local authority ecologists. 

Data privacy

All data uploaded will be fully anonymised in reports. No revealing characteristics about a site will be included in the final reports unless specifically agreed in advance and in writing with the site owner and the relevant ecological consultant. 

Case studies required

Please only supply case studies that fit within the schematic below i.e. where mitigation has been carried out in relation to damage or destruction to a bat roost; and either where post mitigation monitoring has been conducted (UK & Republic of Ireland), or where it hasn’t been conducted but you are willing to contact the landowner to allow BCT access to do so (England & Wales).

We are specifically interested in case studies involving
  • Myotis spp.
  • Pipistrellus pipistrellus
  • Pipistrellus pygmaeus
  • Plecotus auritus
If you have any queries about either project please email:

CIEEMbatmitigationresearch@cieem.net

BCT: BWWM@bats.org.uk