Mortgage japanese knotweed

Mortgages and Lendings Issues

Initially residential mortgage lenders may require the ‘Specialist Knotweed Survey’ or a ‘Invasive Species Management Plan’ as it is now recognised by lenders that there is a risk of damage being caused to a property by the spread of Japanese Knotweed.

With the greatest risk from Japanese Knotweed that is growing within 7 metres of the property building (habitable space), regardless of where it is growing (so in other words it could be in your neighbour’s garden but still considered a risk to your property).

Consequently, the majority of UK residential mortgage lenders are reluctant to lend on knotweed-affected properties. However, some individual lenders are willing to consider applications on a case-by-case basis once remediation works has been implemented. These lenders will generally want to see a commitment by the owner of the property to fund, in advance, a long term (at least three years) treatment programme effective against Japanese Knotweed.


Our three and five year control programme is widely accepted by UK lenders and includes a guarantee that can be extended. This guarantee provides assurance that the knotweed will be treated and controlled if it re-grows so that it will not cause any structural damage to your property.

Flexible Payment Options Available

You can split the cost over a number of years*

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