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Preliminary Ecological Appraisal


Preliminary Ecological Appraisal

turbineOur work at most development sites begins with the Preliminary Ecological Appraisal, also known as an Extended Phase 1 Habitat Survey.

How much will a Preliminary Ecological Appraisal Cost?

The cost of a Preliminary Ecological Appraisal is calculated based on the two variables of site size and travels costs. It will also include a fee for a biological records search from the local biodiversity records centre and the Ordnance Survey basemap which starts at £13.95 + VAT.

In practice the variable costs for a Preliminary Ecological Appraisal of a single field would be between £380 and £580 + VAT.

What is a Preliminary Ecological Appraisal?

The Preliminary Ecological Appraisal will identify features of conservation importance on your site that could constitute a constraint to your proposals. Where appropriate, recommendations for impact avoidance, mitigation and post-development enhancement are made to ensure compliance with wildlife legislation and relevant planning policy.

A Preliminary Ecological Appraisal will normally be the first time that we visit your site. Prior to the visit our ecologist will order a biological records search from the local biological records centre and will look at habitats surrounding your site using free online resource such as Google Earth and Bing maps. This allows us to understand the context of the site within its landscape and assess which species may be active in the general area.

Phase-1-habitat-surveyThe ecologist will then arrange your site visit. Although there is no need for you to be present during the Preliminary Ecological Appraisal, if you have any concerns about site ecology we are very happy to have an informal site meeting at the start, or the end, of the site visit. During the Preliminary Ecological Appraisal the ecologist will carefully walkover the whole site and its boundaries taking notes and annotating printed field maps with Phase 1 habitat types. They will also identify the key plant species whilst looking for evidence of protected or pest species.

The results of the Preliminary Ecological Appraisal will be written into a clear and concise report including a detailed map of your site describing habitat types present and any features of ecological interest. This is the foundation ecological document for your site and is normally valid for two years from the date of survey. All work in relation to our Preliminary Ecological Appraisal will be in accordance with British Standard BS42020:2013 Biodiversity – Code of practice for planning and development.

The Preliminary Ecological Appraisal will make recommendations on how to proceed with your development without impacting protected species and habitats. This may be simple avoidance methods such as limiting hedgerow removal to periods when nesting birds are absent, or it may be something more complex such as the need for a detailed method statement to deal with a pest species like Japanese Knotweed.

If it is unclear whether protected species are present or how they use your site, the report may make recommendations for further protected species surveys. This is now normal for larger development sites with significant land-take.

The Preliminary Ecological Appraisal can also make recommendations on biodiversity enhancement, particularly if your project is looking for an award under BREEAM, CfSH or CEEQUAL.

Our Commitment to You

To show how committed we are to providing you with a high quality service, we have adopted BS 42020:2013 Biodiversity – Code of practice for planning and development for all of our Preliminary Ecological Appraisal. Furthermore our ecologists are full members of the Chartered Institute of Ecology and Environmental Management (MCIEEM) or Royal Society of Biologists (MRSB) and bound by their Professional Code of Conduct.


We are always available for a chat so call now on 0800 622 6828 or 07730 880988 or email to request a free proposal

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Registered Office: Brunel Court, 122 Fore Street, Saltash PL12 6JW

Trading address: 1 Geffery Close, Landrake, Saltash PL12 5HA


0800 622 6828

01752 851 979


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