Japanese Knotweed Report

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MLA can facilitate both Remediation reports and Diminution reports, which will provide an accurate and impartial account of any Japanese knotweed issues.

Remediation Reports

An experienced Horticultural Expert or Chartered Surveyor who is a Certified Surveyor of Japanese Knotweed, who specialise in invasive species can provide detailed and efficient Remediation reports. The expert will carry out an inspection of the land in question, and identify with plot evidence, evaluate the extent of the infestation and advise of the most effective method of treatment or removal. The distance of the infestation to the habitable space is measured using a calibrated laser measure and a RICS risk assessment rating is confirmed. A conclusion is provided with an estimation of the costs and processes involved in treatment of the infestation, which typically include a Herbicide Management Plan to treat the stems and installation of a protective root barrier.

Diminution reports

A site assessment will be undertaken by an experienced Chartered Surveyor to identify the presence of JKW (or review recent Remediation Report outlining the extent of infestation) and accurately assess how it may affect the market value of the property.

The Chartered Surveyor will consider the RICS Professional Standard “Japanese Knotweed and Residential Property” to categorise the Knotweed infestations into one of the four  Management Categories: A, B, C & D, with Management Category A being the most serious impact / treatment and D being the least serious impact.

The Chartered Surveyor will then set out the framework advocated by the RICS Professional Standard when considering the full affect on value of the presence of knotweed used by Phil Santo in 2017 in his paper “Assessing diminution in value of residential properties affected by Japanese knotweed.”

These factors will be detailed in the report when assessing the likely impact of Knotweed on market value:

  • Costs of Works
  • Impact in the market prior to remediation
  • The restrictions on use of the property
  • The impact during remediation
  • The impact of the infestation present on adjoining land
  • Post-remediation impact on future saleability
  • Summary affect on value

These factors will be detailed in the report when assessing the likely impact of Knotweed on market value:

Costs of Works

Costs of Works

 Impact in the market prior to remediation

Impact in the market prior to remediation

The restrictions on use of the property

The restrictions on use of the property

The impact during remediation

The impact during remediation

The impact of the infestation present on adjoining land

The impact of the infestation present on adjoining land

Post-remediation impact on future saleability

Post-remediation impact on future saleability

Summary affect on value

Summary affect on value

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Jodi Vernon

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Amazing service. Mr. Rahman was very thorough in his investigation of my property and left no stone unturned. Very professional and knowledgeable, he took the time to explain his findings clearly and answered all of my questions with patience. I felt confident in his assessment and would highly recommend his services to anyone in need of a detailed and reliable property survey.

21/05/2025

dave mason

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The hearing test commenced on time and proceded in a friendly and efficient manner. I was very happy with the experience

21/05/2025

stuart holding

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Great service , very thorough

21/05/2025

Joseph Egerton

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Very plesent sourondings for my examination, and professionally done, thank you .

21/05/2025

carl mills

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Great service would recommend

21/05/2025

Lee Ryves

Star Star Star Star Star

Very professional

21/05/2025

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If you’d like to speak to us about our medical reporting services and how we can support your case, please contact our expert team today.

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