What do I need to know about a Preliminary Roost Inspection (PRI)?
A PRI is undertaken as part of the Initial Ecological Assessment when there are buildings (or mature trees) on site that may be impacted by the proposed development works.
A PRI is an initial inspection of the building / tree to assess the suitability for it to contain bats, which are a European and locally protected species. It is a day-time scoping survey that can be undertaken at any time of year. Lots more information on bat surveys can be found on the PDF download button below.
Bat surveys can be a complicated subject...thats why we offer a FREE and no obligation face-to-face site meeting to discuss your requirements and hep you understand the process.
Why do I need a Preliminary Roost Assessment?
Bat populations have declined drastically throughout Europe (and the world), and as such they are now a protected species in many countries. In Jersey bats (and their roosts) are protected under the Conservation of Wildlife (Jersey) Law 2000, therefore any development which may impact a protected species needs to have an ecological survey undertaken.
What does a Prelimenary Roost Inspection involve?
- A Biodiversity Records search of the area to investigate what bat roosts are known to the immediate area, purchased from the Jersey Biodiversity Records Centre;
- A full inspection of the outside and inside (roof voids) of the building to look for direct evidence of bats
- DNA sampling of bat droppings, if found
- Tree surveys for bats
- An assessment of the suitability of the building to contain bats
- Recommendations for further surveys that the Department of the Environment / Planning will require prior to determination. Further surveys will always be avoided if at all possible
- Mitigation measures to be followed, if this will avoid the requirement for further surveys to be undertaken (e.g. Precautionary Ecological Method Statement, Timing of works etc.)
What About Costs?
Our report costs start from £375*
Exact costs will depend on the size of your property and the scope & complexity of the works proposed. That is why we offer a free site meeting to discuss your project and ensure the best value report and approach is quoted for.
*An additional charge from the Jersey Biodiversity Records Centre (to get a report on protected wildlife known to the vicinity of your site) may also be required in some circumstances. Additional charges for DNA analysis of droppings may also apply.
Further Information about bat surveys
The States of Jersey Department of the Environment require all bat surveys to follow the Bat Conservation Trust Best Practice Guidelines (Collins 2016) when undertaking surveys for bats. These guidelines can be found here ...but we know that this can all be a bit overwhelming so we have produced a summarised version of this on the PDF link below. Also we are very happy to come to site for a face to face chat to talk you through the process and requirements at no charge!Download