Petition · past parliament

Require sellers of new property to declare presence of Japanese Knotweed

Rejected 14 signatures

What the petition asks

Currently developers are not required to disclose whether property has undergone treatment to eradicate Japanese Knotweed prior to the sale and this often leaves purchasers with no recourse in the event the Japanese Knotweed returns and requires further treatment.
Purchasers of new build properties are finding that developers have sold property having identified Japanese Knotweed and having carried out less than sufficient treatment to eradicate it - often with minimal guarantees from the treatment provider. This can leave owners needing to fund treatment years after purchase and/or being unable to sell the property due to the effect on the value.

Why it was rejected

It asked for something that is not the responsibility of the UK Government or Parliament.

We can't accept your petition because the UK Government and Parliament aren't responsible for the issue you raise. However, in response to a recommendation from the House of Commons, the Law Society's Property Information Form (TA6) used during the conveyancing process now includes a specific question on the presence of Japanese Knotweed.

https://www.lawsociety.org.uk/topics/property/updated-property-information-form-ta6-and-guidance-notes-published

Failure to give an accurate answer on the form could be misrepresentation and subject to legal proceedings.

Timeline

18 Sep 2020 Petition opened for signatures
25 Sep 2020 Rejected by the Petitions Committee

Key facts

Signatures 14
Status Rejected
Rejected 25 Sep 2020

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Source: the official petition page. Last checked 15 Jul 2026.