"A number of main banks and building societies will not provide mortgages on property where Japanese knotweed is found," he said.
"This comes as a huge shock to many homeowners, that the weed may have made their home unsaleable."
Japanese knotweed was first introduced to the UK in the early 19th century as an ornamental plant and has now established itself across the country.
It is the most invasive species of plant in the country which can spread extremely quickly. It is very difficult to eradicate and can cause significant damage to buildings. Once identified, knotweed is particularly difficult to remove and it is now classed as controlled waste under the Environmental Protection Act 1990.
It is very important that Japanese Knotweed is identified before purchasing a property. Surveyors will be able to identify Knotweed at a property in their Homebuyer Report and give appropriate advice.
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