A Preliminary Ecological Appraisal (PEA) is the essential first step in understanding the ecological value of a site and identifying any constraints or opportunities for development. At Wold Ecology, we deliver clear, reliable, and proportionate PEA's that support informed project planning, reduce risk, and ensure compliance with environmental legislation.
Our PEA process is built on established industry standards, including CIEEM guidance, and is designed to provide a rapid yet thorough assessment of ecological issues.
1. Desk Study
We collate and review data from local records centres, mapping resources, designated sites, and historical aerial imagery to establish the known ecological context of the area.
2. UK Habitat Classification Survey
Our experienced ecologists carry out a structured field survey to:
Map habitats across the site
Assess their condition and ecological importance
Identify signs of protected species, priority species, or invasive plants
All habitats are categorised according to recognised classifications, ensuring consistency and accuracy.
3. Preliminary Protected Species Assessment
During the site walkover, we evaluate the potential for the presence of protected species including bats, badgers, great crested newts, reptiles, nesting birds, water voles and others. This helps determine whether further targeted surveys are required.
4. Impact Assessment & Recommendations
We assess how proposed works could affect habitats or species and provide practical advice on:
Avoidance and mitigation strategies
Enhancing ecological value
Minimising risk and satisfying planning policy requirements
Where needed, we outline a clear schedule for any follow-up surveys.
A well-prepared PEA enables early, informed decision-making and smooth progress through the planning process. At Wold Ecology, our reports translate complex ecological information into clear guidance that supports both compliance and project delivery.
Benefits of a PEA include:
Early identification of ecological constraints, reducing delays later in the project
Clarity on necessary protected species surveys and optimal survey timings
Recommendations that help integrate biodiversity into site design
Support in meeting planning policy, Biodiversity Net Gain (BNG) obligations, and legislative requirements
By combining ecological expertise with a pragmatic, solutions-focused approach, Wold Ecology ensures that development and nature conservation progress hand-in-hand from the earliest stage.