Hamilton House, 1 Temple Avenue, London, EC4Y 0HA Telephone: +44 (0) 203 393 2750 Email: info@mdmw.london
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Dunne and Waterman Chartered Accountants London







About Us

Mark Waterman and Marie DunneDunne & Waterman was established in 2014 as a partnership between Mark Waterman and Marie Dunne who have worked together successfully for many years.

Both are highly experienced and work as an open and equal partnership with professional support. The firm is based in central London and has an international bias whilst covering the normal services expected by both corporate entities and private individuals, trusts and charities wherever they may be based.

Our clients benefit from the knowledge and combined experience of both partners. Although a young and dynamic firm, the partners have between them over 40 years of experience. We are an expanding, successful business, growing through referrals and new work from companies and individuals based in or moving to the UK. We welcome new clients, whom we hope will benefit from the following attributes of our firm:

  • A partner led relationship with either Mark or Marie. Both partners are fully conversant with all of the needs of every client of the firm. This we believe sets us apart from many other firms where you may find yourself dealing with a more junior member of staff or subject to multiple contacts within the firm.
  • An holistic approach to each client’s needs.
  • Transparency regarding fees. We are happy to offer a fixed fee basis for compliance work.
  • A choice by you as to how much you wish us to do. We offer a complete ‘one stop’ service or can deal with specific issues.
  • A simple synopsis of difficult areas which we aim to be easily understandable and which sets out the more important matters.
  • Liaison with your other advisors to ensure that you receive an efficient and cost effective service.

Mark Waterman

Mark graduated from Cambridge University and began his career in a highly respected City firm of Chartered Accountants. He qualified as an Associate of the Institute of Chartered Accountants in England and Wales and later became a Fellow and member of the Tax and Audit faculties. He is also a member of the Society of Trust and Estate Practitioners.

He was a partner at the City firm for many years before he and Marie Dunne, a colleague, decided to set up Dunne & Waterman in 2014

On the private side of practice, Mark advises individuals and trusts, guiding them through the complexities of income tax, capital gains tax and inheritance tax. A significant part of his practice involves advice on property matters, be they holiday lets, development or investment. Mark was involved in a landmark tax case involving business property relief for a stately home, which case continues to be relevant today. He also specialises in landed estates and trusts.

Mark has worked in both London and Paris and advises those who move from France to the UK or vice versa, and those who own property in either jurisdiction as well as trustees who may have reporting requirements in France.

On the corporate side, Mark’s expertise encompasses audit, accounts, tax compliance and advice for UK companies and charities with trading subsidiaries. His client base includes UK subsidiaries of overseas parent groups around the world.

He has dealt with corporate structures in the hotel, leisure, energy, wind farm, and transport sectors dealing with international matters including transfer pricing, double tax agreements and thin capitalisation. He is familiar with the type of issues which might arise and the differing accounting treatments involved.

Mark is passionate about the climate and climate change and enjoys skiing.

Marie Dunne

Marie is dual qualified in the UK as a member of the Association of Chartered Certified Accountants (later holding a Fellowship) and of the Institute of Chartered Accountants in England and Wales.

During Marie’s career she has advised clients ranging from corporate multi-national groups to high net worth individuals, whilst managing an international portfolio with clients based in Africa, Norway, Spain, France, Australia, the US and Brazil. This experience covers a broad range of industries from UK subsidiaries of US blue chip energy companies to large agricultural estates. She advised, with Mark Waterman on the structuring and sale of wind farm developments in Scotland and Wales to Scottish Power.

Marie has a special interest in non-domiciled individuals providing clear advice for those moving to and from the UK.

Marie has worked in both London and Paris, where she had exposure to offshore trusts. Prior to establishing Dunne & Waterman with Mark , she worked for the UK subsidiary of a Brazilian bank based in the City of London.This role was key in their development and involved establishing systems, controls and policies, as well as dealing with the Financial Conduct Authority in terms of compliance and financial reporting.

Marie is originally from Cork in Ireland and moved to the UK in 1997.




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