During the planning stage of a New Forest re-roofing scheme of 350 properties, an extensive ecological assessment was required to understand the presence of impacted species. The majority of surveyed properties are terraced houses constructed in the 1960s and 1970s, with a small number of semi-detached houses and flats requiring re-roofing and repairs to bring them up to standard.

During the initial Phase 1 survey, a total of 51 properties were identified as having varying levels of suitability to support roosting bats; these properties were subject to further bat emergence and dawn re-entry surveys. A small number of properties were found to support low numbers of roosting common pipistrelle. ECOSA, a Trinity Consultants team, subsequently prepared and submitted a European Protected Species Mitigation (EPSM) licence application in respect of bats to Natural England on behalf of the client, in order to comply with protected species legislation and to ensure roosting bats were not going to be harmed during the works.