PEA Survey: Preliminary Ecological Appraisal

The PEA survey process

The process of conducting a Preliminary Ecological Appraisal (PEA) survey in the UK typically involves two key steps to ensure a detailed evaluation of any ecological constraints a proposed development may face. Here is an overview of the PEA survey process:

1. Ecological desktop study:
• Data gathering: Collect existing ecological data from sources such as local biological records centres and previous ecology survey reports.
• Literature review: Review relevant literature, including local biodiversity action plans, site designations (e.g., Sites of Special Scientific Interest, Special Areas of Conservation, and Special Protection Areas), and historical ecological data.
2.  Extended phase 1 habitat survey:
• Habitat mapping: Conduct a site visit and walkover field survey to map habitats on the development site using Phase 1 Habitat Survey methodology.
• Species list: Identify and record plant species and any signs of protected and notable species (e.g., nests, burrows, droppings).
• Photographic evidence: Take photographs to document habitat types and notable features.

Guidelines for preliminary ecological appraisal surveys can be found on the CIEEM website.

When is a PEA survey required?

If a development has the potential to impact biodiversity on a site, an ecological impact assessment of the site will usually need to be carried out. Preliminary ecological appraisals should be carried out before the submission of planning applications. We would advise that pre-application discussions with the local planning authority are undertaken to find out if a site survey is required.

When considering a planning application, the local planning authority will consider how the impacts of the development on the environment and biodiversity of an area. It will also consider the presence of any notable species or habitats present on the site.

If it is determined that the proposed development could affect species and habitats in the area, mitigation methods will be required to be put in place before the proposal can be granted planning permission. This is done to support protected species in the surrounding area and ensure no further harm is caused.

How can Collington Winter assist?

Collington Winter are passionate about ecology and provide a holistic and innovative approach to development. We are fast paced problem solvers, working with clients to find solutions where others cannot.

Our Ecology Director, Olivia Collington, is a highly professional Ecologist. She is passionate about ecology and has vast amounts of experience in providing ecological services, including ecological appraisals and site assessments.

We provide a pragmatic service offering to the residential, commercial and minerals sectors nationwide. We understand the importance of working closely with clients to provide a great service and deliver excellent results. We aim to provide a service which meets the needs of developers, whilst ensuring positive outcomes for wildlife.

If you would like to find out more about the services we provide, or if you are interested in starting an ecology project with Collington Winter, contact us using the form below. You can also contact our Ecology Director, Olivia Collington, via email at info@collingtonwinter.co.uk.

To find out about our landscape architecture services, have a look at this section on our website.