Mr David Gregson

Chartered Surveyor

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CEnv - 2008
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    [Expert_Experience1] => 
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    [Key_Words] => Japanese knotweed, Invasive species, Surveyor, Valuation, Contract disputes,   Professional negligence
    [Brief_CV] => I am a Chartered Surveyor, Chartered Biologist and Chartered Environmentalist. My first career was as an Ecologist. In 2009 I became one of the first two professionals in U.K. to become an Accredited Expert Environmental Witness.

I have acted as an Expert before all the major Courts and Tribunals, and been cross examined on many occasions as part of my work.

Following a long and varied professional career I now specialise in invasive species work, particularly Japanese knotweed. I was the Single Joint Expert in the Supreme Court case of Davies v Bridgend CBC.
I have a particular knowledge of Japanese Knotweed control and associated valuation issues. I provide expert reports on Japanese Knotweed to major institutions, public utilities, surveying companies and private clients and in relation to P.I. claims.  As far as I am aware I am the only person who is both a Japanese knotweed expert and an RICS Registered Valuer. I am therefore able to deal with all aspects of a claim in a single report.
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I am a Chartered Surveyor, Chartered Biologist and Chartered Environmentalist. My first career was as an Ecologist. For the past 24 years I have worked as a Chartered Surveyor, undertaking a range of professional work. In 2009 I became one of the first two professionals in U.K. to become an Accredited Expert Environmental Witness.
I have acted as an Expert before all the major Courts and Tribunals, and been appointed as a Mediator in London County Court as well as my local Courts. One third of my work  is now as an Expert, and I regularly prepare reports on building disputes, valuation claims, boundary disputes and other matters.
I hope to develop my practice into the emerging environmental field. I have a particular knowledge of Japanese Knotweed control and environmental land management.

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TAE Accreditations

  • Expert Witness

Qualifications

  • MIBiol (1981)
  • Member of the Royal Institution of Chartered Surveyors MRICS (1986)
  • Chartered Environmentalist CEnv (2008)

Expert Witness Snapshot

I am a Chartered Surveyor, Chartered Biologist and Chartered Environmentalist. My first career was as an Ecologist. In 2009 I became one of the first two professionals in U.K. to become an Accredited Expert Environmental Witness.

I have acted as an Expert before all the major Courts and Tribunals, and been cross examined on many occasions as part of my work.

Following a long and varied professional career I now specialise in invasive species work, particularly Japanese knotweed. I was the Single Joint Expert in the Supreme Court case of Davies v Bridgend CBC.
I have a particular knowledge of Japanese Knotweed control and associated valuation issues. I provide expert reports on Japanese Knotweed to major institutions, public utilities, surveying companies and private clients and in relation to P.I. claims.  As far as I am aware I am the only person who is both a Japanese knotweed expert and an RICS Registered Valuer. I am therefore able to deal with all aspects of a claim in a single report.

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