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

Breaking News

Council funding to crack down on rogue landlords

English councils are set to receive additional funding and training to help tackle rogue landlords, ahead of taking on new responsibilities when renters’ rights reforms come into force next month. All 317 local authorities in England will share £41 million in funding, building on an earlier £18 million allocation made last autumn. The funding is…
Read More
New Builds 2020
Breaking News

Fewer than 1 in 5 new properties securing buyer

New-build demand remains subdued as fewer than 1 in 5 homes find buyers in Q1 2026 The latest New-Build Stock and Demand Index from Property Inspect has found that demand for new-build homes remained subdued in the first quarter of 2026, with fewer than one in five new properties securing a buyer. New-build stock levels…
Read More
Estate Agent Talk

Top five AML red flags in UK property transactions

Cash-heavy and internationally supported purchases continue to shape the UK market New data from client due diligence platform Thirdfort reveals the most common anti-money laundering (AML) red flags identified in UK property transactions. Analysis of more than 415,000 completed Source of Funds (SoF) checks shows that the top five red flags are: Savings mismatch – 43.04% Gifted…
Read More
Estate Agent Talk

Discover Northern Ireland’s top emerging investment hotspots

Derry/ Londonderry and Fermanagh named Northern Ireland’s top emerging investment hotspots Northern Ireland’s emerging investment hotspots are delivering compelling opportunities for landlords in 2026, with new research from Belfast-based estate agency John Minnis revealing a shift in where investors are finding the strongest returns. Drawing on insights from the latest John Minnis Investment Guide, the…
Read More
Breaking News

Breaking Property News 13/4/26

Daily bite-sized proptech and property news in partnership with Proptech-X.   Why customisation matters more than capability Thought Leadership by Wes Snow CEO & Co-founder of Ascendix Technologies ‘There’s a persistent misconception that success with Artificial Intelligence comes down to selecting the most advanced or sophisticated tool. In reality, that’s not where the value lies. The real…
Read More
Rightmove logo
Breaking News

First-time buyers pay extra £307m in stamp duty since relief ended

New Rightmove analysis reveals that since the end of the temporary relief measure in April 2025, first-time buyers in England have paid an estimated £307 million extra in stamp duty, averaging £4,618 more per buyer: The total estimated first-time buyer stamp duty bill over the past year was £408 million, versus £101 million the previous year In April 2025 the first-time buyer stamp duty threshold was lowered from £425,000 to £300,000. Before the change 62% of homes for sale were stamp-duty free for first-time buyers and that has…
Read More