case study CHALLENGES Set four miles South East of the city of Derby is Elvaston Castle Country Park, a picturesque site featuring over 200 acres of woodlands, parkland and formal gardens. At the heart of the estate lies Elvaston Castle surrounded by famous Grade II* Listed gardens, and within those gardens a Moorish Temple, much vandalised and in need of restoration. With known bat roosts in the building, Baker Consultants was commissioned by Derbyshire County Council to undertake a survey and scope what was thought to be some simple mitigation work. Survey techniques included dusk/dawn surveys and a visual survey of the roof space. In total, seven bat roosts were discovered within the building; “surprising when you realise that the building is only 4 by 4 metres in size, had water pourin

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