Whether developing or demolishing a site, you may need a bat survey in order for your planning application to be successful. Our team of specialist ecologists take away the hassle involved by providing the surveys and reports you need in order to move forward with your project.


There are 18 species of Bats in the UK (though only 17 known to be breeding here), all of which are protected by European and UK Law and are consequentially a material consideration in the planning process

Bat Surveys

Due to their variable activity patterns and hibernation over the late autumn and winter period, surveys to determine the presence (or likely absence) of summer roosts of bats are best carried out in the optimum period between May & August when bats are at their most active; though surveys can be carried out between April and September if weather conditions are good. Please refer to our Ecology Survey Calendar for further information on bat and other protected species surveys.

Preliminary Roost Assessments (PRA)

Wharton offer Preliminary Roost Assessments (also known as initial bat surveys) which are regularly requested by Local Planning Authorities when buildings are to be significantly altered or demolished.

This is the first step in identifying whether your property or land is suitable to support roosting bats, and indeed may identify whether bats are already present. PRAs can be carried out throughout the year.

Bat Emergence Survey

If your Preliminary Roost Assessment finds that you do have the potential for bat activity, you will require an activity survey/ emergence survey. These surveys often take place at dawn or dusk and can take place between April and October. Together with a preliminary roost assessment, a bat emergence survey is required in order to get your planning application granted by your local authority. Due to bats hibernating over the winter months, it is important to book your PRA and subsequent Emergence survey in plenty of time to avoid hold up at the planning stage.

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Wharton undertook an initial bat survey which identified suitable areas for roosting bats and evidence of bat activity (droppings).



Wharton undertook a preliminary ecological appraisal, bat activity and emergence/return to roost surveys, and completed a shadow Habitat …

Wharton undertook an initial bat survey which identified suitable areas for roosting bats and evidence of bat activity (droppings).

“Barberry has always found the Wharton team to be knowledgeable and efficient in their input backed with a commercially realistic approach to the development process”

M P Winters - Construction Director, Barberry Group Limited

Wharton employ a dedicated team of professionals who continue to deliver proven success, through education and a solid foundation of knowledge and experience.



Principal Ecological Consultant

Senior Ecological Consultant

Ecological Consultant
- Bat Coordinator -

Assistant Ecological Consultant

Ecological Consultant

Project Coordinator