Commercial Japanese Knotweed Survey

Commercial Japanese Knotweed Survey

A Japanese knotweed survey is normally one of the first steps before you purchase a commercial property. As a commercial property owner your responsibilities are even greater than a residential property owner in keeping the premises safe for yourself and your employees and that knotweed does not encroached onto other premises. Also having a Japanese knotweed survey will help determine accurate development costs for a site. Because Japanese knotweed has the potential to damage property structure it is important that it is identified before any development begins. If you are a current commercial property owner and suspect you have Japanese Knotweed then it is important to arrange a survey to enable early remediation.

There are a variety of different methods of treating and eradicating Japanese knotweed from herbicide treatment to excavation. A Japanese knotweed survey will help determine the best method of treatment based on the extent of the infestation, timescale and available space. It is for this reason that early identification is crucial to minimize remediation costs.

Japanese knotweed site plan, site survey

 

The Knotweed Management Plan (KMP)

When we carry out a survey we will prepare you a Knotweed Management Plan (KMP) which will include detailed account of knotweed, photographs and location. The KMP will also include the RICS (Royal Institute of Chartered Surveyor) Risk Category which determines your level of risk from Japanese knotweed.

 

 

 

Royal Institute of Chartered Surveyors (RICS) RISK category table

Category Descriptors - Japanese knotweed risk categories (4 being the highest risk)

4

Japanese knotweed is within 7 metres of a habitable space, conservatory and/or garage, either within the boundaries of this property or in a neighbouring property or space;

and/or

Japanese knotweed is causing serious damage to outbuildings, associated structures, drains, paths, boundary walls and fences and so on.

Further investigations by an appropriately qualified and/or experienced person are required (Japanese Knotweed Limited)

3

Although Japanese knotweed is present within the boundaries of the property, it is more than 7 metres from a habitable space, conservatory, and/or garage. If there is damage to outbuildings, associated structures, paths and boundary walls and fences, it is minor. Further investigations by an appropriately qualified and/or experienced person are required (Japanese Knotweed Limited)

Further investigations by an appropriately qualified and/or experienced person are required (Japanese Knotweed Limited)

2

Japanese knotweed was not seen within the boundaries of this property, but it was seen on a neighbouring property or land. Here, it was within 7 metres of the boundary, but more than 7 metres away from habitable spaces, conservatory and/or garage of the subject property.

1

Japanese knotweed was not seen on this property, but it can be seen on a neighbouring property or land where it was more than 7 metres away from the boundary.

 

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