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Bat Survey

There are currently 18 species of bats in the UK, 17 of which are known to breed here. All bats are protected under the 1981 Wildlife & Countryside Act (as amended) and are listed in Schedule 2 of the Conservation of Habitats & Species (Amendment) (EU Exit) Regulations 2019 and bat populations have suffered severe decline over the last century. Bats are natural pest controllers eating thousands of insects every night and require different roosting conditions throughout the year, they can be found in a variety of buildings, tunnels, trees or bridges.

Our surveyors hold Natural England Class 2 and Natural Resources Wales bat survey licences with inspections/assessments undertaken at any time of the year and frequently the results can be conclusive which can save time and expense for Planning Applicants.

We work on projects both small and large, from trees and barns up to castles and stately homes. During our preliminary roost assessment, if evidence or suitability for roosting bats is identified we have extensive experience in undertaking further detailed surveys to provide comprehensive results and top quality reports as efficiently as possible.


When a preliminary survey does find evidence of or suitability for roosting bats, our extensive experience in undertaking further detailed surveys  including dusk/dawn, hibernation and activity surveys providing accurate, comprehensive results and top quality reports as efficiently as possible. Habitat surveys that we undertake are particularly beneficial for proposed wind turbines, road schemes or land proposed for future development where our expertise comes into its own when planning, organising and undertaking habitat transects.

Bat services we offer:

We offer the full suite of common bat surveys, along with numerous more specialist survey types which require additional accreditation. The array of surveys that can be requested can be quite extensive, each with it's own acronym! Services we offer include:

  • Preliminary Roost Assessment (PRA) / Daytime Bat Walkover (DBW)

  • Ground Level Tree Assessment (GLTA)

  • Potential Roost Feature (PRF) Aerial Inspection Surveys

  • Dusk Emergence/Dawn Re-entry Surveys ("Nocturnal Surveys")

  • Activity Surveys/Bat Transects

  • Confined Spaces Surveys

  • Hibernation Surveys

  • Swarming Surveys

  • Roof Strip/ECoW Supervision

  • Crossing Point Surveys

  • Acoustic/static Monitoring Surveys

  • EPSML Application (England and Wales)


Our bat surveyors are fully competent in operating surveying equipment and use the latest electronic bat detectors to locate and record the high frequency calls that are emitted by bats; our data is analysed by our fully trained staff in house using specialist software.

Our Confined Space Certifications enable us to undertake inspections of culverts, tunnels, mines, caves or bridges in a controlled and safe manner in accordance with the Confined Spaces Act.



If during any of our survey work bat/s or their roost/s are located and may be affected by the proposed schedule, Tyrer Ecological Consultants have complied numerous  successful Natural England and Natural Resources Wales  European Protected Species Mitigation Licence applications for our clients which are required to legally proceed with the development.

We are experts at providing bespoke mitigation solutions, and have had three case studies featured in the 2023 Bat Mitigation Guidelines!

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Get Your Free Quote

Tyrer Ecological Consultants
Roselands, Suite 1,

3 Cross Green, Formby

L37 4BH

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