Bat Surveys

Comprehensive bat assessments for planning applications. From Preliminary Roost Assessments to full emergence/re-entry surveys covering all nine Irish bat species.

Why Are Bat Surveys Needed?

All bat species in Ireland are protected under the Wildlife Acts (1976 to 2023) and the EU Habitats Directive (Annex IV). It is an offence to deliberately kill, injure, or disturb bats, or to damage or destroy their breeding sites or resting places. This protection applies year-round, whether bats are present or not.

Planning authorities routinely require bat surveys for developments involving demolition of older buildings, renovation of barns and outbuildings, felling of mature trees, installation of lighting near potential roost sites, and wind energy development.

                Timing is critical: Bat activity surveys can only be conducted between April and September. If your planning application is likely to require a bat survey, plan ahead to avoid missing the survey window and delaying your project by up to a year.
            

Our Bat Survey Services

Preliminary Roost Assessment

Daytime inspection of buildings and trees for evidence of bat use — droppings, staining, scratch marks, and potential access points. Can be done year-round.

Emergence & Re-entry Surveys

Dusk emergence and dawn re-entry surveys using bat detectors (Batlogger M, Echo Meter 2 Pro) to confirm roost presence and species identification. April–September only.

Bat Impact Assessment

Assessment of development impacts on bat populations with species-specific mitigation measures, including bat box installation, sensitive lighting design, and timing restrictions.

Derogation Licence Support

Where bat roosts must be disturbed, we prepare NPWS derogation licence applications with mitigation and compensation measures.

Need a Bat Survey?

Send your site details and we'll respond with a fixed-price quote within 24 hours.

Get a Quote or call 089 499 1181

Survey Season Guide

Preliminary Roost Assessment: Year-round

Emergence/Re-entry Surveys: April to September

Optimal Survey Period: June to August

Static Detector Deployment: April to October

We use state-of-the-art equipment including Batlogger M, Echo Meter 2 Pro, and static detectors for comprehensive species coverage. All surveys follow Bat Conservation Ireland guidelines and CIEEM best practice.

Get a Quote

Send your project details — we'll respond with a fixed-price quote, typically within 24 hours.

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089 499 1181