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

Budget wishlist

Kevin Shaw, National Sales Managing Director at LRG With the Budget just days away, the property market is in a slightly better place than it was this time last year. Stamp Duty has been ruled out of this year’s changes, which removes the kind of speculation that held buyers and sellers back last autumn. The…
Read More →
Estate Agent Talk

Autumn Budget 2026: Property industry experts comment

Ahead of Wednesday’s Autumn Budget, property industry experts from across the residential sales, lettings, land and property development, mortgage finance and client money protection sectors have shared their predictions, priorities and warnings for the Chancellor. With speculation surrounding property taxation, first-time buyer support, landlord investment, inheritance tax and housebuilding, industry leaders outline what Wednesday’s announcements…
Read More →
Adding second coat of varnish floor boards
Estate Agent Talk

5 Renovations That Can Transform a Property Before It Goes on the Market

Ask a vendor what they plan to fix before listing and the answer is often too ambitious. A loft conversion won’t be finished in time, and it rarely pays back on a quick sale. The changes that actually move a listing are smaller and cheaper, and they show up in the photos. Here are five…
Read More →
Breaking News

Seven things to do if a tree damages your property

Storm Austen and Storm Boelo are bringing strong winds and heavy rain across the UK this weekend, meaning homeowners could find themselves dealing with fallen trees, damaged roofs, crushed cars and difficult conversations with neighbours about who should pay. But what should you do if a neighbour’s tree comes crashing through your roof? Will your…
Read More →
Rightmove logo
Breaking News

Leasing demand rises across all sectors

Leasing demand rises across all sectors as investment enquiries remain subdued Leasing enquiries rose across all four main commercial property sectors in the third quarter of 2026, while investment enquiries fell in three, according to Rightmove’s latest Commercial Insights Tracker. The figures point to improving occupier interest alongside a more cautious investment market. Industrial property…
Read More →
Breaking News

Don’t Put The Property Market On Pause

What Estate Agents actually want from the Budget Estate Agents are looking to the looming Budget for something that has been in short supply across the property market in recent years – certainty. That was one of the clearest messages to come out of iamproperty’s recent roundtable attended by agents from across the UK. The…
Read More →