The TA6 form (Property Information Form) contains a question specifically relating to whether there is Japanese knotweed present on the property during a sale. The new guidance regarding this question, issued in February 2020, has resulted in multiple claims for compensation.
Should your client ask about this question, you may wish to recommend a survey to provide them with peace of mind ahead of purchasing the property.
If you are representing the seller, a Japanese knotweed survey can help expedite the process as well as ensuring they are not liable for any costs or compensation should knotweed be found on the property at a later date.