This can be expensive to obtain - and even then buyers may be reluctant to take a property on with Knotweed. The pressure exerted by the expanding rhizomes will result in damage. By Paolo Martini on 11th February 2019 (updated: 14th July 2020) in News. “The main consideration for sellers (and buyers) is distance. 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 latest Japanese knotweed research. 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 some house vendors and purchasers. Loss of Property Value. More than 20,000 people have now downloaded it, … 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. Seeds of Change - is Japanese knotweed undergoing a radical image overhaul? In the distance you see a beautiful leafy plant with delicate flowers. 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 distance of the alleyway to your house is not a problem. Generally, companies will spray the alleyway inclusive of their charge for your property. Japanese knotweed was first introduced to Britain back in 1825 as an ornamental plant. 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. 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. The presence of the rhizomes, despite not causing physical damage, was noted by the judge as being a ‘natural hazard’. Japanese Knotweed Law & Legal Advice. Some people don’t even realise that Japanese knotweed is sprouting up in the garden or harmfully growing nearby. 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. This minimum distance from Japanese knotweed accounts for both the actual structure of the property and the boundary of the property. However, in practice, the presence of Japanese Knotweed is always likely to interfere with a property owners use and enjoyment of the land. The banks require ten-year guarantees and … Japanese knotweed was introduced here from Japan in 1850, when it was regarded as a rare beauty thanks to its white flowers. 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. Get a quote. Environet estimates that Japanese knotweed now affects 4 – 5% of homes in the UK. Look up the regulations concerning Japanese knotweed in your area. - 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. Published 24 May 2019. Japanese knotweed crown and rhizome may survive burning so you must dispose of any remaining material following the guidance on how to bury or dispose of it off-site. 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 … Japanese knotweed is an aggressive semi-woody perennial plant that is native to eastern Asia. In the 1800’s it was introduced to North America as an ornamental species and also planted for erosion control. These laws have been put into legislation slowly … 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. 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. It has since spread throughout the United States and Canada. The research shows five percent of UK homes equals 1,450,000 properties, which face £34.12bn taken away from their value. 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. Do I have Japanese knotweed and what does it look like? Japanese knotweed is pretty distinct looking. Here’s what you need to know. 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. How Japanese Knotweed Affects House Insurance: Are You Covered? 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 … You remember reading about Japanese knotweed and realise this plant looks very similar. If Japanese knotweed is within seven metres of any property then a treatment plan and guarantee are required. Japanese Knotweed rhizomes can spread a considerable distance (7 metres or further) from the plant. How much does Japanese knotweed affect House Prices? 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%. 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. The 5 categories of severity are as follows: 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. 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. 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. Left unaddressed, knotweed can effectively wipe out the value of a house. It will push up through tarmac car parks and drives and paved areas. If the knotweed is a significant distance from the property it should not hinder the sale. To be on the property ladder with a Japanese knotweed … Japanese knotweed can create problems with those perfectly nice people next door. By Paolo Martini on 11th March 2020 (updated: 18th March 2020) in News. Japanese knotweed is in nearly all our provinces. 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. 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. 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). Property Wire reported that a landmark ruling has allowed UK homeowners to sue their neighbours if Japanese knotweed ends up on their land. 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 discovery of Japanese knotweed on a person’s property can come as a blow that completely undermines plans for the future. 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 … Five years ago, the Environment Agency commissioned a new app to track Japanese knotweed, using the crowd-sourcing principle. And the threat is real: it can lower house prices, threaten our bridges, and drive men to madness. It can grow at a rate of … Compare home insurance quotes. 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. 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. 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. Japanese knotweed is the scourge of both suburbs and countryside, and with very good reason. 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. 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. UNLESS you have an expensive treatment plan - and a 10-year guarantee - in place. However, many people are too mean to pay for knotweed spraying and the whole alleyway needs to be sprayed. Although Japanese knotweed is described by the Environment Agency as 'indisputably the UKs most aggressive and destructive plant', it can be dealt … However, the plant soon started to take over gardens and proved almost untameable – with an ability to grow up to 20cm every day! 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. Environment Agency commissioned a new app to track Japanese knotweed and realise this plant looks similar! 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