Bat Survey, Bath

What is a Bat Survey?

Bat surveys may be required for some developments to assist with planning applications. Typically, the local planning authority will let you know whether or not a bat survey is required. The requirement for a bat survey may also be found during a preliminary ecological appraisal.

 A survey will help determine whether there are bats located in a structure or tree within close proximity to the site. 

Bat surveys detect the presence or likely absence of bats within the development area so that the planning and development process can go ahead. If the survey finds that there are bats on, or within close proximity to a site, compensation and bat mitigation measures must be undertaken before any development work is permitted to proceed. 

bat survey leeds

Bat Survey, Bath: Bat Activity


Bat activity in Bath is at its peak during the summer months. During these times of the year, protected species surveys should be carried out to determine the presence of bat roosting. Maternity roosts are likely to be found during this season. If bat activity is found during a bat survey in the summer months, a bat hibernation survey could be required during the winter months. This type of survey involves finding out whether the area is also used by hibernating bats. 

There are many species of bats that are likely to be found in Bath. These include long-eared bats, Common pipistrelle bats, Noctule bats, Soprano pipistrelle bats, Whiskered bats, Daubentons’ bats, Nathusius’ pipistrelle bats and Brandt’s bats. 

Types of Bat Survey

There are two types of bat activity survey services. These survey services include: 

 Preliminary Roost Assessment: This is the first step in the bat surveying process which involves an ecologist carrying out a site visit. They will carry out an internal and external inspection of the building looking for evidence of bats, including insect feeding remains and bat droppings.

Nocturnal bat surveys: These are also known as dusk or dawn surveys. This type of survey involves surveyors using bat detectors to record and analyse bat calls. They will be either dusk bat emergence surveys (when bats are leaving their roosts to forage) or dawn re-entry surveys (the end of the night out when all the bats return back to their roost site).

How Can Collington Winter Assist?

Collington Winter Environmental are a nationwide ecological consultancy providing expert assistance on all types of projects. We have extensive knowledge and experience in assisting with projects involving bat surveying and mitigation/ compensation in the South West.

Our Ecology Director, Olivia Collington, is a Chartered Environmentalist with the Institute of Environmental Science. She also holds a Natural England bat licence, a Great Crested Newt licence and a Natural England Badger Mitigation licence. She has worked with protected species throughout the UK, undertaking field surveys and writing scientific, accessible reports for submission at planning. 

Olivia has many years of experience in the field of Ecology. Her previous experience and professional development gained through her membership with IES have provided her with the knowledge and expertise required to deal with all types of environmental challenges. 

Please get in touch with our Ecology Director Olivia Collington via email ( for expert advice about protected species and ecology surveys. We also provide ecological appraisal and assessment services, badger surveys, great crested newts surveys and more. 

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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