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- info@japaneseknotweedexpert.co.uk
- United Kingdom
Japanese knotweed disputes in County Durham often reach a point where progress stops. A sale stalls. A neighbour dispute escalates. Different survey opinions circulate, but no one is able to make a decision.
At that stage, what’s usually missing is clear, independent evidence focused specifically on Japanese knotweed. A Part 35 expert witness report provides an impartial position that solicitors, lenders, insurers, and courts can rely on.
If a solicitor, mortgage provider, or insurer has mentioned the need for Part 35 evidence, we can confirm quickly whether it’s required and explain the next step without delay.
Free initial advice • Independent expert evidence • Typical 10-day turnaround
In many Japanese knotweed disputes, progress only resumes once there is independent evidence everyone can rely on.
Typical situations where a P35 CPR compliant report for Japanese Knotweed is required when:
A property sale or purchase has stalled due to knotweed concerns
A neighbour dispute has escalated beyond informal discussion
A mortgage lender or insurer has requested independent evidence
Conflicting surveys or opinions are preventing agreement
If any of these apply, independent Part 35 evidence can help move things forward.
Visit our P35 for Japanese Knotweed page for more details.
Across County Durham, Japanese knotweed disputes often arise where properties are adjacent to railway land or older landscaping, with encroachment affecting multiple parties.
We regularly support homeowners and professionals dealing specifically with Japanese knotweed issues, providing evidence that is proportionate, focused, and suitable for dispute resolution without unnecessary complication.
A private residential property in County Durham, with two Japanese knotweed stands near a shared boundary and adjacent to a railway embankment. The property was the subject of a Part 35 expert report involving both claimant and defendant.
Stand 1 measured approximately 70 m², over 20 years old, along the railway line, encroaching into the claimant’s garden. Stand 2 measured 15 m², around 10 years old, in the neighbouring garden, where wall paving damage was observed. Evidence indicates the infestation likely originated from the railway embankment and spread into both properties.
No structural damage was confirmed, though a structural survey was recommended. Professional treatment across both properties and the railway embankment was advised, using spraying and injection of a glyphosate-based herbicide by a qualified contractor to ensure long-term control.
A detailed expert assessment confirmed the infestation’s extent, origin, and risk, providing clear guidance for treatment and ongoing property protection. The total cost of the works was &7,967.55 + VAT.
No unnecessary steps. No lost time.
We confirm whether Part 35 evidence is required
Evidence gathered by a specialist
Clear, compliant expert report
Available for follow-up questions if needed.
For a full overview of the process, visit our P35 for Japanese Knotweed Service Page.
Clients across County Durham choose ProHort because we deliver:
| What's Included | Why It Matters |
|---|---|
| Independent site inspection | Establishes an objective, first-hand position everyone can rely on |
| Clear Knotweed findings | Removes uncertainty around presence, extent, and risk |
| Expert professional opinion | Provides evidence suitable for legal and dispute use |
| CPR Part 35 declaration | Confirms independence, compliance, and duty to the court |
| Statement of truth | Ensures the report can be relied upon if challenged |
Delays rarely come from the knotweed alone. They come from uncertainty — conflicting surveys, unclear responsibility, or evidence that isn’t suitable for legal use.
Our role is to remove that friction.
Yes. We prepare CPR Part 35–compliant expert witness reports for matters arising in County Durham. Reports frequently relate to invasive plant issues and land condition disputes, including Japanese knotweed and similar species that may affect property use, development, or liability.
Part 35 reports are commonly required where specialist opinion is needed to assist the court. In County Durham, this often includes disputes involving invasive plants on former industrial or mining land, alleged spread between properties, development constraints, or historic land management responsibilities.
Reports may be relied upon by solicitors, barristers, insurers, surveyors, developers, landowners, and the court. The expert’s overriding duty is to the court, and opinions are provided independently, regardless of who provides instructions.
Yes. All reports are prepared in accordance with CPR Part 35 and the associated Practice Directions. They include statements of truth, declarations of independence, and clear explanations of inspection findings, invasive plant assessments, methodology, and conclusions.
Yes. Experts may be required to attend joint expert meetings, case management hearings, or to provide oral evidence under cross-examination. Attendance is provided where instructed and directed by the court.