This can be expensive to obtain - and even then buyers may be reluctant to take a property on with Knotweed. If Japanese knotweed grows close to your house, retaining/garden wall, fence or garden building, the underground roots and rhizomes can damage these structures as they exploit the cracks/mortar joints and weaknesses. In the distance you see a beautiful leafy plant with delicate flowers. The Victorians were wild about Japanese knotweed, with its beautiful heart shaped leaves, delicate creamy-white flowers and hardy attributes which made it ideal for lining pathways and supporting banks. During its peak growing season, it can grow up to 2cm a day and is well known for burrowing into cracks and weaknesses in … The 5 categories of severity are as follows: If the knotweed is a significant distance from the property it should not hinder the sale. Some people don’t even realise that Japanese knotweed is sprouting up in the garden or harmfully growing nearby. The government has introduced a number of Japanese knotweed laws and regulations surrounding the control, growth and transportation of Japanese Knotweed in order to protect homeowners, businesses and the environment alike. This minimum distance from Japanese knotweed accounts for both the actual structure of the property and the boundary of the property. Here’s what you need to know. Japanese Knotweed rhizomes can spread a considerable distance (7 metres or further) from the plant. Japanese knotweed can create problems with those perfectly nice people next door. Five years ago, the Environment Agency commissioned a new app to track Japanese knotweed, using the crowd-sourcing principle. Although Japanese knotweed is described by the Environment Agency as 'indisputably the UKs most aggressive and destructive plant', it can be dealt … You remember reading about Japanese knotweed and realise this plant looks very similar. - Distance between Japanese knotweed and house If you've been reading about Japanese knotweed, you'll know that it has the potential to be a very damaging weed. Japanese knotweed is in nearly all our provinces. With news that RICS is in the process of updating its guidance on how surveyors should deal with Japanese knotweed, the House of Commons Science and Technology Committee (“Committee”) has just published a report on “Japanese knotweed and the built environment” calling on … As recent reports have indicated, the presence of this destructive non-native weed, can knock thousands of pounds off the value of your property, in some cases, up to 10%. However, many people are too mean to pay for knotweed spraying and the whole alleyway needs to be sprayed. That’s what happened in the dramatic case of the West Midlands man who, in July last year, killed his own wife, and then himself, on being told (wrongly, as it turned out) that knotweed from the next-door golf course was going to destroy the value of his house. The RICS Japanese knotweed information paper categorises the risk caused by Japanese knotweed into five degrees of severity so that banks and other mortgage lenders can make an accurate and reliable decision on how much finance is offered on properties that have a Japanese knotweed problem. Because Japanese knotweed is classified as “controlled waste” by the 1990 Environmental Protection Act, many places, like the United Kingdom, require you to dispose of it at a licensed landfill site. And the threat is real: it can lower house prices, threaten our bridges, and drive men to madness. Left unaddressed, knotweed can effectively wipe out the value of a house. Japanese knotweed or fallopia japonica is an invasive fast-growing plant that can send its roots deep into the ground and cause damage to building foundations, drainage systems and walls.. It’s an aggressive weed, first introduced into the UK in the mid-19th century, that has a bad reputation. The latest Japanese knotweed research. It has since spread throughout the United States and Canada. Japanese Knotweed has a root spread of up to seven metres meaning that, in one growing period, it can travel up to that distance even if it hasn’t been disturbed. Japanese knotweed can have a negative impact on the value of your property, not to mention causing conflict between neighbours and causing stress in your day-to-day life. By Paolo Martini on 11th February 2019 (updated: 14th July 2020) in News. The increasing demand for information on Japanese Knotweed during the house buying process is emphasising the need for householders to pay more attention to the problem, it is claimed. For example, we have first-hand experience of a particular mortgage lender declining an application when Japanese Knotweed was mentioned in a Homebuyers Report, despite the infestation being on adjacent land in excess of 20 metres away from the boundary and double the distance … The distance of the alleyway to your house is not a problem. The research shows five percent of UK homes equals 1,450,000 properties, which face £34.12bn taken away from their value. Japanese knotweed house damage. If a property is found to have an infestation of Japanese knotweed on their land or Japanese knotweed within 7 meters, it is extremely difficult to secure a mortgage against the property. Japanese knotweed is pretty distinct looking. How Japanese Knotweed Affects House Insurance: Are You Covered? More than 20,000 people have now downloaded it, … Published 24 May 2019. The rapid spread of Japanese knotweed across the country and growing awareness of the risks means homeowners are increasingly forced to confront the issue when buying and selling property. Japanese Knotweed was brought to the United Kingdom in the 19th century after the plant was discovered in Japan growing on the side of volcanoes. Seeds of Change - is Japanese knotweed undergoing a radical image overhaul? to some house vendors and purchasers. How much does Japanese knotweed affect House Prices? Property Wire reported that a landmark ruling has allowed UK homeowners to sue their neighbours if Japanese knotweed ends up on their land. It can grow at a rate of … Japanese knotweed is an aggressive semi-woody perennial plant that is native to eastern Asia. These laws have been put into legislation slowly … Whichever way you choose to deal with Japanese Knotweed, it’s important to bear in mind that lenders aren’t lending against property that has Japanese Knotweed (even if it is a few metres away). Look up the regulations concerning Japanese knotweed in your area. Japanese knotweed can halt a house sale, but with a variety of ways to identify and treat it, it doesn't have to stop you buying your perfect home. Environet estimates that Japanese knotweed now affects 4 – 5% of homes in the UK. Not only does knotweed cause damage to property, and interfere with a house sale because a lender won’t lend, it can also cause problems with your neighbours. If Japanese knotweed is within seven metres of any property then a treatment plan and guarantee are required. It will push up through tarmac car parks and drives and paved areas. Japanese knotweed infestations are separated into 4 categories: Knotweed Category 1 if it’s on a neighbouring property, and Category 4 if it’s within 7 meters and/or actually causing damage to the property. To be on the property ladder with a Japanese knotweed … Japanese knotweed was first introduced to Britain back in 1825 as an ornamental plant. If you have bought a house that's affected by Japanese knotweed, and you are able to show the seller knew about Japanese knotweed on the property, you can sue the seller. Japanese Knotweed Law & Legal Advice. It’s a question we’re often asked, so we’ve teamed up with Expert Surveyors Ltd, the leading dedicated provider of RICS expert property valuation reports in the UK and created JK-VIM, a valuation impact model that gives indicative price reductions. The presence of the rhizomes, despite not causing physical damage, was noted by the judge as being a ‘natural hazard’. In the 1800’s it was introduced to North America as an ornamental species and also planted for erosion control. UNLESS you have an expensive treatment plan - and a 10-year guarantee - in place. Japanese knotweed is wrongly destroying the value of thousands of homes because mortgage lenders are relying on discredited scientific evidence, an investigation by MPs has found. A much more nuanced and evidence-based risk framework is urgently needed to reflect the latest thinking on the significance of Japanese knotweed, in relation to the size of the infestation, the distance from the property, and the potential risk of any damage. Compare home insurance quotes. The pressure exerted by the expanding rhizomes will result in damage. By Paolo Martini on 11th March 2020 (updated: 18th March 2020) in News. The discovery of Japanese knotweed on a person’s property can come as a blow that completely undermines plans for the future. Generally, companies will spray the alleyway inclusive of their charge for your property. Loss of Property Value. Japanese knotweed is the scourge of both suburbs and countryside, and with very good reason. However, in practice, the presence of Japanese Knotweed is always likely to interfere with a property owners use and enjoyment of the land. It is estimated between 850,000 and 900,000 UK homes are affected by Japanese knotweed, reducing the value of these properties by around 10 … The banks require ten-year guarantees and … Get a quote. Japanese knotweed was introduced here from Japan in 1850, when it was regarded as a rare beauty thanks to its white flowers. Initially valued for its beauty, opinion changed when it was discovered the extensive and fast-growing roots can have catastrophic consequences on a building’s drains and foundations. Most house sale documents now have a section detailing questions related to Japanese Knotweed so you would need to be honest when answering these questions. Mortgage lenders now require the sellers of properties affected by knotweed to provide evidence of a professional treatment plan along with an insurance-backed guarantee for remedial work, before they … “The main consideration for sellers (and buyers) is distance. A much more nuanced and evidence-based risk framework is urgently needed to reflect the latest thinking on the significance of Japanese knotweed, in relation to the size of the infestation, the distance from the property, and the potential risk of any damage. However, the plant soon started to take over gardens and proved almost untameable – with an ability to grow up to 20cm every day! Do I have Japanese knotweed and what does it look like? 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