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Denis has been involved in ecology and nature conservation for more than 30 years. He is a specialist in conducting habitat surveys, ecological impact assessments, habitat creation projects, biodiversity action plans and formulating management plans, particularly for urban sites. He also has a great interest in ancient woodland history and ecology particularly in lowland England.

  • Denis has been a fully freelance consultant ecologist since 2016 and has taken on a wide range of projects. Clients have included a variety of NGOs, 10 London councils, private companies and individuals.

  • Between 2009 and 2016 Denis worked as Biodiversity Officer for the London Borough of Harrow. Work included advice on planning issues, writing 10 management plans for selected Harrow SINCs and writing the borough’s 5-year Biodiversity Action Plan (BAP).

  • Denis worked for the multinational green design consultancy EDAW plc (Aecom Planning & Design) between 2007 and 2009 where he conducted / led habitat / phase one surveys of Arun District in Sussex, Bedford River Valley (Regional) Park, Hurtwood Country Polo Club (Surrey) and other large projects.

  • Between 2001 and 2007 Denis worked for the London Wildlife Trust (LWT) as Habitat Survey Manager supervising and carrying out habitat surveys for the Greater London Authority (GLA). Whilst working in this capacity, surveys of the London Boroughs of Hackney, part of Havering, Barking & Dagenham, Camden, Waltham Forest, Lewisham, Merton and part of Enfield were conducted.

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