Protected Species Surveys

Great Crested Newt Surveys
Water Vole Surveys
Bird Surveys
Bat Surveys
Badger Surveys
Otter Surveys
Invertebrate Surveys
Reptile Surveys
Brown Hare Surveys

Habitat Surveys

Phase 1 Habitat Surveys
Pre-Purchase Site Assessment
River Surveys
Hedgerow Surveys
Invasive Species Surveys
Bryophyte Surveys

Environmental Impact Assessment


Habitat Creation
Restoration & Mitigation

Aquatic Habitats
Terrestrial Habitats

Management Plans

CMS Bespoke Plans

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Bat Surveys

Early identification of the presence/absence of bats at a proposed development site is important, as the unexpected or late discovery of bats can cause lengthy delays to your project. The presence of bats at a site does not necessarily mean that the work cannot proceed, but if bats are affected by the work they will need to be taken into consideration and mitigated for as a legal requirement.

Our surveyors can assist in finding which bat species are present and how they are using a site. Once this information has been gathered we can offer practical solutions and obtain the necessary licences to legally allow work to commence.

We undertake bat habitat activity and roost surveys / assessments where bats or roost potential may be present in buildings, trees, mines, culverts and other structures.

Increasingly we are requested to undertake surveys in relation to wind turbine projects including single domestic or larger schemes. Our team of surveyors hold Natural England Scientific & Education bat survey licences and regularly successfully apply for and obtain European Protected Species Mitigation licences.

Roost assessment involves looking for evidence of bats in potential roost structures. Bat droppings can be collected and analysed if required by DNA analysis to determine species. Use of endoscopes can be used to access potential roost presence of crevice dwelling species.

Our surveyors are able to undertake both large and small scale projects throughout the country including all counties of Wales. We undertake surveys for any size of organisation including; householders, developers, local authorities and government bodies.

Our surveyors are Confined Space Entry certified.










Nocturnal surveys are typically aided with the use of three types of electronic bat detectors to locate and record the high frequency echolocation calls that are emitted by bats and act as an ‘early warning’ to bat presence.

  1. Heterodyne/Frequency Division: Monitors bat calls in real time – calls can be recorded using frequency division and analysed with computer software.

  2. Time Expansion: Simultaneously monitors all bat calls at a reduced time factor, which can then be recorded onto an external recording device.

  3. Anabat: Records all bat calls in real time on to a ‘Compact Flash’ card; information can then be analysed with computer software and can also be left in situ as an automatic recording device.

 For further information in relation to bat ecology and survey methods see the following links:


Natural England Bat Mitigation Guidelines


Natural England Hints on Licencing


Obtaining a Licence



Example contracts include:

  • United Utilities PLC

    Numerous surveys of land holdings in relation to roost assessment, nocturnal surveys and mitigation design / construction.

  • Patrick Properties

    Surveys and mitigation design for new business park developments at Chorley and Wigan.

  • LEM Mining

    Bamfurlong Marina development, Leeds Liverpool Canal; Survey, design and mitigation.

  • Barden Mill Company Limited

    Phase 1 / 2 Leeds Liverpool Canal marina developments

  • Reedley Hallows, Burnley

    This work included nocturnal bat surveys and roost assessments followed by implementation of  measures to avoid impacts on bats including carefully designed landscape features, new waterbodies and low impact lighting controls to avoid impacts on Daubenton’s bat.

Case Studies