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About Us

We are a highly experienced team of architects and technologists based in Watlington in Oxfordshire. We can offer full or partial services, tailored to your particular needs from project inception to completion. We have extensive knowledge in;

  • Providing master planning services
  • Improving existing planning approvals
  • “Unlocking” sites in difficult locations
  • Green belt approvals
  • Working within Conservation Areas
  • Listed buildings
  • Barn conversions / barn style houses
  • High quality residential design
  • Initial planning & feasibility reports
  • Planning appeals
  • A variety of other projects including health care
  • Mixed use and commercial developments


David Parker


David Parker is a fully qualified Royal Institute of British Architects member, Charter member with over 30 years’ experience, including 5 years in Local Government. He is a residential specialist who has run his own practice for over 20 years.

Amanda Walker


Amanda Walker is a fully qualified Royal Institute of British Architects, Charter Member with over 18 years’ experience in sectors including; leisure, housing and health care. She has worked for DP Architects for over 7 years.

Mark Longworth


Mark Longworth is a fully qualified Royal Institute of British Architects, a Chartered Member with over 18 years’ experience, and has Postgraduate qualifications in Energy Efficient Building and Practice Management, as well as a local Parish Council Chairman and a board member of Cherwell Community Land Trust. Mark is the diversity champion for the practice. Mark has a special interest in Energy Efficient Design with training in Passivhaus, and has recently designed a 13 unit Passivhaus scheme in Bedfordshire for a Housing Association.

James Kestell-Cornish


James is a fully Chartered member of the Chartered Institute of Architectural Technologists and has been an instrumental part of the practice for over 10 years. James has a broad level of experience in providing the full range of architectural services on a diverse range of projects, from social housing developments to bespoke high end dwellings. One of James’s recent projects was highly commended at the UK and International Property Awards.

Stewart Green


Stewart Green is a fully Chartered Member of the Chartered Institute of Architectural Technologists with over 27 years’ experience and has worked extensively in the Conservation Area and is well versed in Barn Conversions. Stewart is the Technical & BIM Director and has been associated with the Practice since 1994.

Patricia Morris

Company Secretary

Patricia Morris has worked for DP Architects for over 11 years. She has many years experience in senior administrative roles and working within finance.

Associated Organisations

DP Architect Members