FAQs
5
When should I appoint an ecologist?
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As early as possible—ideally before the design is finalised or a planning application is submitted. Early ecological input helps identify constraints, seasonal survey requirements and opportunities to retain or improve habitats.
Which ecological services will my development need?
2
This depends on the site, proposed works and potential effects on wildlife and habitats. An initial assessment helps establish the appropriate scope. You may need a Preliminary Ecological Appraisal, a Preliminary Roost Assessment, further species surveys, a Biodiversity Net Gain assessment or a combination of these.
We recommend services based on the ecological evidence and the requirements relevant to your proposal.
What is a Preliminary Ecological Appraisal (PEA)?
3
A PEA combines a site walkover with a desk study to identify habitats, potential protected species constraints and opportunities for enhancement. It recommends any further surveys or assessment needed.
A PEA is an initial appraisal; it may not provide all the information required for a planning decision.
What is a Preliminary Roost Assessment (PRA)?
4
Why might I need further species surveys?
A PRA assesses buildings or structures for evidence of bats and features that could support roosts. It may be relevant to demolition, roof repairs, conversions or other works affecting suitable structures.
The findings determine whether further bat surveys are needed.
An initial visit cannot always establish whether a species is present or how it uses a site. Further surveys—sometimes called Phase 2 surveys—provide more detailed information where potential impacts have been identified.
Depending on the site, these may include bat, reptile, bird or other species surveys. The scope and methods are determined individually.