Preliminary Ecological Appraisal Birmingham: Collington Winter

What is a Preliminary Ecological Appraisal?

Preliminary Ecological Appraisal (PEA) should be the first step you take in evaluating a site. A PEA will provide an overview of a site, which can help to understand its ecological conditions. The two main components of an ecological appraisal include an extended Phase 1 habitat survey and an ecological desk study. A Preliminary Ecological Appraisal will often be requested during a planning application for planning permission.

When is a Preliminary Ecological Appraisal Required?

If a proposed development has the potential to impact an area, an ecological assessment of the site must be undertaken. Preliminary ecological appraisals must be carried out before the submission of a planning application. Preliminary ecological appraisals are also often used in conjunction with biodiversity net gain methods, which are becoming increasingly important.

We advise that pre discussions with local planning authorities are undertaken to determine whether an ecology survey is required.

Types of survey

Collington Winter are able to assist your project by undertaking ecological desk studies, as well as extended phase 1 habitat surveys.

  • Ecological Desk Study: Collington Winter provide an ecological desk study service, obtaining records and data on designated sites. We undertake research on legally protected sites and obtain records on protected species within the area of the site. We are then able to provide printed or interactive maps using GIS using the data provided.
  • Extended Phase 1 Habitat Survey: Using extended phase 1 habitat surveys, we can identify any key ecological constraints or issues. We can also provide guidance on how to best resolve the ecological issues identified.

We use the extended phase 1 habitat survey technique to map habitats present on-site and within the surrounding area. These surveys can also help to identify if any further ecological surveys may need to be carried out, such as walkover surveys or ecological impact assessments.

How can Collington Winter assist?

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

We provide a range of services, including Preliminary Ecological Appraisals, bat roost surveys, and great crested newt surveys.

If you would like to find out more about a preliminary ecological appraisal, Birmingham, contact us using the form below. You can also contact Olivia Collington via email at

Contact Us

Registered Address

23 Bark Street East, 1st Floor, Bolton, BL1 2BQ

Cambridge Office

Future Business Centre, Cambridge Campus, Kings Hedges Road, Cambridge, CB4 2HY


Head Office: 01204 939 608

Dumfries Office: 01387 378208

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