Bat Survey, North Wales: Protected Species Surveys

What is a Bat Survey?

Bat activity surveys are undertaken for development sites to inform a planning application and determine presence of bats and roosting bats. The survey will also determine whether the development has potential to impact bats in the local area. The local planning authority will usually let you know if a bat survey is required.

If bats are found to be present on a site, mitigation and compensation measures must be undertaken before any development work can begin.

There are many species of bat which are likely to be found in Wales and the North West of England. These include, common pipistrelle bat, Noctule bat, soprano pipistrelle bat, Daubentons’ bat, Whiskered bat, Brandt’s’ bat and Nathusius’ pipistrelle bat.

Bat survey Berkshire

Bat Survey, North Wales: Types of Survey


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: This involves surveyors using bat detectors to record and analyse bat calls. They will be either bat emergence surveys (when bats are leaving their roost to their foraging habitat) or dawn re-entry surveys (the end of the night out when all the bats return back to their bat roosts.

How Can Collington Winter Assist?

Collington Winter Environmental are a team of ecological consultants with extensive experience in undertaking bat and hibernating bat survey work on all types of development projects. Our Ecology Director, Olivia Collington, holds a Natural England Bat licence/ protected species licence, and has worked with European protected species across the UK.

Please get in touch with our Ecology Director Olivia Collington ( for more information on protected species surveys, such as nesting bird, bat and barn owl surveys. We also provide a wide range of ecological surveys, including habitat surveys and ecological appraisals and assessment services.

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