ACD History


ACD is a multi-disciplinary environmental consultancy practice registered with The Landscape Institute and The Institute of Environmental Management and Assessment. Established in 1985 we provide an environmental package of landscape architectural, archaeological, arboricultural and ecological consultancy for all forms of development.


The Company offers a specialised service for all aspects of development. We still maintain an involvement in park design, historic landscape restoration and conservation issues.

In the last 12 months, ACD has worked for approximately 250 different clients on over 800 projects, through the provision of environmental consultancy services. Since the formation of the practice, the Company have successfully completed over 4,500 projects across Britain and a number of international projects. Since our inception, we have been responsible for projects as diverse as Lakeside Shopping Centre in Essex, Shire Park Business Park in Hertfordshire and landscape consultancy to Alexandra Park & Palace in North London, and more recently the major developments at the Pan Urban Extension on the Isle of Wight, Tolworth Girls School in South London and Drayton Garden Village in West London.

John Constable is the Managing Director of ACD Environmental with over 20 years of professional experience, oversees all of ACD Environmental’s projects at the Malmesbury office with Helen Selwyn (Director and Principal Landscape Architect), Jon Seymour (Technical Director), Amy Kinahan (Graphics Director) and a team of Landscape Architects. Daniel Wood (Director and Principal Ecologist) leads the team of ecologists, who are also based in the Malmesbury office. Our Surrey office is led by Director and Principal Aboriculturist Mark Welby. Annelies Earley (Southern Director) leads the team based in Eastleigh. We still maintain close contact with Stephen Dale, our founder, who is now a senior consultant with over 30 years of experience.


We provide the following services:

  • Landscape and Environmental Assessment
  • Archaeological Surveys and Consultancy
  • Arboricultural Surveys and Consultancy
  • Ecological Surveys and Consultancy
  • Representation at Local Planning Appeals
  • Expert witness at Planning Inquiries
  • Landscape Master Planning
  • Detailed Landscape Design
  • Landscape Construction Details
  • Landscape Management and Maintenance Reports
  • Landscape Project Management
  • Landscape Maintenance Audit
  • Agricultural Land Classification and Farming Circumstances