Should evidence show that bats are identified via emergence surveys, then a final step of bat mitigation and compensation will be required.
Working with your ecology consultant you will design a mitigation plan. This involves applying to Natural England for a protected species licence.
However, you will need planning permission to have been granted prior to applying for this licence.
For the licence to be granted, a mitigation strategy will be required that could involve timings of works, installation of bat boxes (both external and internal) and/or creation of a bat loft for void-dwelling species (such as brown long-eared).
In some instances, the best solution can be a stand-alone ‘bat house’. Bat access roof tiles may also provide a good solution to development.
Lower impact measures may require just the installation of a bat box or two. This method is sufficient in the instance of a single crevice dwelling bat, such as a common pipistrelle.
The mitigation plan will address the potential impacts on bats and must avoid negative effects on bat roosts, such as small alternations to project designs or delayed work which may expose the bat roost.
If this is not possible, the use of alternative mitigation measures to reduce the impacts must be implemented.
Mitigation and compensation methods can include:
- Changing work methods or timing to avoid roosting periods. For example, work to be complete during winter on summer roosts.
- Creating new roosts within the same building or on neighbouring structure
- Improving or creating habitats. Such as new foraging areas
- Long term management of habitats
- Roost monitoring after the development