Case Studies

Bat Survey Monmouthshire

Wildwood Ecology was instructed by The Landmark Trust to undertake a bat survey on a series of historic buildings in Monmouthshire.

The proposed works were for the restoration of a Grade 1 listed building and a series of historic barns, regarded by Cadw as one of the finest medieval hall houses in Wales. The hall, known as Llwyn Celyn (Holly Bush), have been continuously inhabited since it was built in the 1480s, the last occupants moving out in 2014.

Landmark found Llwyn Celyn in a perilous state, and it is one of the most complex restorations they’ve ever undertaken. Over a decade since it was first identified as of significant historic interest, it is now a fascinating and comfortable place to stay, with glorious views of the Skirrid and Sugar Loaf mountains. This borderland has hardly changed since priors, knights and Marcher Lords roamed; and since 1420, when Llwyn Celyn was built for a man of sophistication and status.

On behalf of the client Wildwood Ecology provided the following ecological services:

  • Project management, including a preliminary roost assessment and a series of dusk emergence and pre-dawn bat roost surveys.
  • Identified the presence of a multiple roosts, including rare species bat (lesser horseshoe), within the main hall house and other historic barns.
  • Provided advice on the legal and planning policy issues and recommendations on how to address these.
  • Successful planning application to Brecon Beacons National Park Authority and subsequent mitigation licence to Natural Resources Wales.
  • Onward audit reports, discharge of planning and mitigation licence conditions and species monitoring to 2022.


The Landmark Trust has raised £4.2million to restore the site and carry out the associated programmes, including a 2.525m grant from the Heritage Lottery Fund. Planning permission following our bat survey was granted in 2016 in Monmouthshire and monitoring works are ongoing under close supervision by Wildwood Ecology.

Wildwood Ecology provided bat surveys in Monmouthshire and across both England and Wales. Contact us to see how we can help you.

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