Land Remediation Relief
Land Remediation Relief
London Japanese Knotweed - Land Remediation Relief on Corporation Tax
020 3488 0922.

Land Remediation Relief (LLR) on Corporation Tax

Land Remediation Relief (LRR) was introduced by HMRC to allow property developers to claim back a percentage of the cost of eradication on land blighted by Japanese Knotweed. The scheme has been running since 1st April 2009. The scheme works by providing relief from Corporation Tax. Companies who meet the qualifying criteria are able to claim 150% of the expense of Contaminated Land Remediation.

Guide to Land Remediation Tax Relief by HMRC

Quote from the HMRC Land Remediation Guide

'Because of developments in the technologies for dealing with Japanese knotweed, Land Remediation Relief is no longer available where material containing Japanese knotweed is taken to landfill. All other methods, including the use of off-site treatment centres continue to qualify for relief. 'HMRC accept that a company is taking remedial action if it takes appropriate specialist advice, and acts in accordance with that advice. For example, some treatments for Japanese knotweed need to be applied during the growing season. If the company was advised to wait for the next growing season before commencing treatment then HMRC accept that they have acted within a reasonable time, if they commence treatment the following year.'

Treatment Methods that Qualify for Land Remediation Tax Relief

Any method of Japanese Knotweed treatment which does not involve removal of excavated soil or material to licensed landfill sites will qualify for tax relief. We advise developers to appoint us as your Knotweed Clerk of Works, and produce a Japanese Knotweed Management Plan for you, including Risk Assessments and Method Statements. Our expert staff are on hand to ensure best practice is used in amy eradication and removal works.

Onsite Cell Burial

Japanese Knotweed can be excavated and buried on a non critical part of the site - subject to certain criteria to stop it from spreading, such as being completely sealed in with root barriers

Cell Burial

Stockpile and Bund

The knotweed contaminated soils are re-located to an area that will not be developed, spread over an area, usually to quite a shallow depth, containing a root barrier on the botton, fenced off and treated under an herbicide programme and monitored over three years. Concrete bunds or root barriers to a depth of three metres are used to prevent the knotweed spreading to other areas.

Stockpile and Bund

Soil Sieving, Sifting and Screening

Contaminated soil is excavated and then put through a Sieving and Sifting process using a conveyor built, vibration al technology and hand picking to remove as much of the rhizome root system as possible. The soil is then re-used on a non critical part of the site e.g. a soft landscaping area. The soil will need treating with herbicide and will need to be monitored for a three year period to eradicate any residual Japanese Knotweed. The removed root system will need to undergo cell burial (see above) in order to qualify for LRR.

Soil Sifting

Herbicidal Treatments

Treatment include spraying, leaf wipe and Stem Injection. We researched all three methods of herbicidal treatment while working as JK contractors for Camden Council and found Stem Injection to be extremely effective. It also has the added benefits that the herbicide stays within the plant and does not effect surrounding animal and plant life, and nearby waterways.

Herbicidal Stem Injection

Please do not hesitate to get in touch if you think we may be able to help you.

Contact us

Japanese Knotweed Photos

More Photos

Share to Facebook Share to Twitter Stumble It More...