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Japanese Knotweed Case Study – Chiswick, London

Careful removal of contaminated composting materials followed by FAST System herbicide treatment, enabling mortgage approval after Japanese Knotweed was identified in the garden of a Chiswick residential property.

Japanese Knotweed Case Study – Chiswick, London

FAST System Treatment & Lender‑Approved Guarantees for a London Residential Property

A residential property in Chiswick, West London was affected by Japanese Knotweed, resulting in concerns from the mortgage lender and delaying the planned sale. IVM was instructed to assess the site, implement a compliant treatment programme and provide the guarantees required to satisfy lender criteria.

Project Overview

Location: Chiswick, London
Site Type: Residential garden
Contamination: Japanese Knotweed
Issue: Lender concerns delaying mortgage approval
Requirement: Full treatment programme & recognised guarantees

The Challenge

The presence of Japanese Knotweed raised red flags with the mortgage lender, placing the transaction at risk. A professional survey, structured treatment plan and long‑term guarantees were required to provide assurance to both the lender and the prospective buyer.

Our Solution

IVM implemented the FAST System herbicide treatment to ensure effective control and long‑term eradication. A full Knotweed Management Plan (KMP) was issued alongside lender‑approved guarantees, enabling the mortgage process to continue. For further guidance on how lenders assess Japanese Knotweed, see our Japanese Knotweed & Mortgages page.

Outcome

• FAST System treatment successfully implemented
• Full Knotweed Management Plan (KMP) provided
• Lender‑approved guarantees issued
• Mortgage concerns resolved
• Property sale able to proceed without further delay

Project Photos

Japanese Knotweed identified within the composting area of the Chiswick residential garden
IVM technician removing contaminated composting materials prior to FAST System treatment in Chiswick
Treated Knotweed area in Chiswick following FAST System eradication and issue of IVM and PCA guarantees

For more details about how we support our clients, including guidance on surveys, treatment plans and aftercare, you can visit our Customer Service page using the link below.

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