Japanese Knotweed – Buyer Beware.

Japanese Knotweed is an invasive plant and was first discovered by Swedish naturalist Carl Peter Thunberg during the 18th century.  By the twentieth century it became apparent that Japanese Knotweed is an invasive plant and needs to be dealt with. There are different types of solutions for treating or eradicating Japanese Knotweed from herbicide treatment to excavation.

If a potential property buyer identifies Japanese Knotweed in the property then the implications could be serious. The invasive plant inflicts damage on brickwork and drainage systems and as a result, mortgage lenders may be reluctant to lend and the property insurers may not want to insure the property. Unfortunately all too often homeowners are oblivious to Japanese Knotweed until the time comes to sell their properties. Although the presence of  knotweed can be problematic, solutions are available.

When selling the property, the seller will need to fill in a form called a TA6 provided by the Solicitor and it is on this form that they declare whether the property is affected by Japanese Knotweed. The seller will need to be able to identify whether there is Japanese Knotweed or if they can’t, they should contact a Japanese Knotweed contractor that can help them identify it. This can simply be achieved by sending in a photo of the plant by email for identification by the contractor.

As for the buyer, it is equally important that they speak to their Solicitor and also contact a Japanese Knotweed contractor to help identify the plant. Once it has been identified, the seller should seek advice from a Japanese knotweed specialist company to discuss how best to put measures in place to treat the infestation and manage the problem. A specialist will be able to provide information on the following: site surveys, Knotweed Management Plan (KMP), herbicide treatment and monitoring program, excavations  and Insurance-Backed Guarantees (IBG).

 

Alex Evans

You May Also Enjoy

Estate Agent Talk

Alterations can change a property’s rebuild cost

‘Don’t get caught short’ warning to homeowners from valuations experts – alterations can change a property’s rebuild cost Properties change over time. Homeowners may add an extension, upgrade a kitchen or bathroom, alter the layout, or even change how the building is used, but when do those changes mean it’s time for a new rebuild…
Read More →
Breaking News

HMO conversions hit investors for £82,000 on average

The average cost of converting a property into a house in multiple occupation (HMO) is estimated at more than £82,000 across England, according to new research by residential property management specialist, Rushbrook, although investors looking to avoid the conversion process have more than 2,500 existing licensed HMOs available to purchase. Rushbrook analysed HMO property listings across…
Read More →
Estate Agent Talk

Selling a HAUNTED house?

Property lawyer reveals whether you have to tell buyers about ghosts    HOMEOWNERS selling a property with a spooky reputation have been warned that its haunted history could come back to bite them if a nervous buyer starts asking questions. From unexplained footsteps and doors opening by themselves to tales of former residents refusing to…
Read More →
Breaking News

Renters call for greater transparency in HMOs

National findings released as 1 in 5 tenants report feeling unsafe at some point during their tenancy because of a housemate Rising housing costs pushing more people towards shared accommodation      42% of tenants received no information about their housemates before moving in 60% wish they had known more about who they would be living with…
Read More →
Breaking News

Housing Insight Report: August 2026

August’s figures reveal a housing market where activity continues, but buyers are taking a more cautious approach, making realistic pricing and negotiation increasingly important. Meanwhile, growing tenant demand and limited rental supply continue to create challenges across the lettings market, highlighting the different pressures facing buyers, sellers, landlords and renters. Nathan Emerson, CEO of Propertymark,…
Read More →
mycelium growth
Estate Agent Talk

How to spot and prevent damp and mould in your home

As temperatures fall and homes become more susceptible to condensation and moisture, Propertymark is urging tenants and homeowners to be aware of the signs of damp and mould and take action early to protect their homes and their health. Two-year-old Awaab Ishak died from a severe respiratory infection after being exposed to damp and mould…
Read More →