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What is a Preliminary Roost Assessment (PRA)?
A Preliminary Roost Assessment is the first step in identifying the presence or potential presence of bat roosts within a building, tree, or other structure. This survey is essential to determine whether further assessments or mitigation measures are necessary before any work begins. Bats are legally protected in many countries, and disturbing their habitats without proper evaluation and permissions can lead to legal consequences and project delays.
At Gradwell Ecology, we conduct comprehensive PRAs to assess the likelihood of bats using a site and provide clear guidance on the next steps required for your project’s compliance with environmental laws.
Why Choose Us?
Gradwell Ecology is a leading ecological consultancy with extensive experience in conducting bat surveys and ecological impact assessments. Here’s why we stand out:
1. Experienced Ecologists – Our team consists of licensed and highly qualified bat ecologists with years of field experience.
2. Regulatory Compliance – We ensure that all assessments comply with relevant wildlife protection laws and planning policies.
3. Quick Turnaround Time – We understand the urgency of your projects and strive to deliver fast and efficient survey reports.
4. Tailored Solutions – Each site is unique, and we provide customized advice based on the specific conditions of your project area.
5. End-to-End Support – From initial surveys to mitigation planning, we assist you through every stage of the ecological assessment process.
Our Preliminary Roost Assessment Process
At Gradwell Ecology, our Preliminary Roost Assessment (PRA) process follows a structured and evidence-based approach to determine the potential presence of bat roosts in a given site. Our expert ecologists begin with a desktop study, gathering historical data on local bat activity and habitat suitability. This is followed by an on-site inspection, where we assess buildings, trees, and structures for physical signs of bat presence, such as droppings, grease marks, or entry points. Based on our findings, we categorize the site’s suitability for roosting and provide a detailed report outlining the next steps.
If further surveys or mitigation measures are needed, we guide you through the necessary legal and ecological compliance procedures, ensuring your project progresses smoothly while protecting local bat populations.
When is a Preliminary Roost Assessment Required?
1. A planning application is submitted for a building or development project.
2. A structure is set to undergo renovation, demolition, or significant modifications.
3. Trees with potential roosting features (e.g., cracks, crevices, cavities) are planned for felling or pruning.
4. There is historical evidence or a previous report suggesting bat activity on the site.
5. The project site is in proximity to woodlands, rivers, or open green spaces, which are natural bat habitats.
