Japanese knotweed is a pesky plant that can grow quickly and spread through the ground, making it difficult to remove.

The question of whether or not you should consider buying land with Japanese knotweed on it often arises when looking for a property – but is there really any harm in doing so?

Is it worth buying a property with Japanese knotweed?

Selling a property with Japanese knotweed isn’t easy, but can nevertheless be accomplished if the right steps are taken and the right individual is involved. Japanese knotweed tends to be most often found in fields that have not been fully tended to.

It invades the entire garden with a thick coating of leaves, which prevents the weeds from growing. Japanese knotweed can also grow on the side of walls and on fences as well as on the lawn.

There are three main factors that people should take into consideration when deciding whether or not to buy land with knotweed.

The first factor is location. Land that has been infested with knotweed must be reseeded immediately to prevent the weed from spreading. The second factor is the type of soil, the garden is in.

There are several different types of soil that are best suited for various types of garden plants so taking this into account will help one determine whether or not they should buy land with knotweed.

Finally, people should consider the ultimate aim of their garden project and make sure that the knotweed isn’t going to completely take over their garden before they complete the job.

Buying land with Japanese knotweed need not be daunting if managed correctly
Buying land with Japanese knotweed need not be daunting if managed correctly

Properties with Japanese knotweed

Auctions for land with Japanese knotweed can take place on all types of properties including homes, businesses and schools. In general, the faster, more lucrative the transaction, the less likely you’re likely to find a property with Japanese knotweed.

However, on slow-moving, less profitable transactions, the more likely you are to find a property with the invasive plant.

If you’re buying land with Japanese knotweed, chances are good that you will experience some degree of damage from it. The first type of damage is to the grass. The top layer of soil may die, leaving the root system very weak and susceptible to damage from weeds.

This is why mortgage lenders may require you to get rid of the grass before you can put your house up for sale.

There are two other categories that you should be aware of. In category 3, the top layer of soil will need to be dug up and turned over at least four times. This will cause secondary damage to your grass. If your grass is in category 4, this will be the extent of your lawn damage.

Lawn damage in Japanese Knotweed categories may range from mild to severe.

It is difficult to answer this without looking at the records of local and national surveys. It would be a shame to ignore the advice of your mortgage broker though. You can find mortgage brokers who can specialise in buying land with Japanese knotweed and other invasive species that have already been on them or are in the process of being treated.

These brokers know where the deals are and how to find them, and are often happy to help you.

Any parcel of land can fall victim to the grip of <a href=
Any parcel of land can fall victim to the grip of Japanese knotweed. Once there, little else exists

Seek professional advice

There is one way to avoid the damage caused by invasive weeds: get a professional soil analysis and test the ground before you begin digging. It is possible to find free soil tests on the Internet or through your local garden centre.

If you get an accurate soil analysis and the soil testing confirms the presence of Japanese knotweed, you could find your mortgage application rejected.

Your final step is to have your soil tested again. A reputable soil specialist can analyse the site for a premium price and tell you whether the knotweed will grow there, and whether it will be invasive or not.

If not invasive, you could then apply for a Japanese knotweed Mortgage. It is possible to have your mortgage application approved if the specialist has assessed your site correctly, however, some mortgage lenders will still refuse to lend if the Knotweed has not been eradicated.

A specialist is essential in these circumstances as they will be able to advise you and explain the complicated legal issues involved in taking control of the property with a weed killer.

Want to know more about buying land with Japanese Knotweed?

Knotweed Removal aims to provide the most up-to-date information, help and advice for YOU to make informed decisions. If you are unsure or uncertain about how to proceed, please reach out to us and we will gladly come back and advise you as best we can.

Governmental advice can be found here and the UK law covering the removal of Japanese Knotweed as stated under the Wildlife and Countryside Act 1981 can be found here.

The best means to contact us is via our email – hello@knotweedremoval.tips

Do not forget we have a library of blogs covering many areas relevant to Japanese Knotweed, our free downloadable How-to Guides and Product Reviews on the latest methods being employed to eradicate or remove Japanese Knotweed.

Knotweed Removal, UK

Bestseller No. 1
Bayer Garden 2 x Path, Patio & Drive Weed Killer & Watering Can Set - 3 x 8g Sachets per pack treats upto 75sqm - Kills Ground Elder, Nettles, Docks, Couch Grass & Japanese Knotweed.
  • This exclusive twin pack and 9L Watering Set is everything you need for clearing weeds from paths, patios and rives including areas of tarmac, concrete and block paving.
  • Kills tough weeds and their roots including: Ground Elder, Nettles, Docks, Couch Grass, Japanese Knotweed, Brambles, Bracken & Ivy.
  • Each box contains 3 x 8g Simple ready measured soluble doses and treats up to 75sqm. Apply at any time when weeds are showing green leaf and are actively growing.
  • Sold with our durable 9L or 2 gallon capacity galvanised steel watering can with removable brass rose. Colour cannot be guaranteed. Watering can will be randomly picked and despatched.
  • Keep children and pets away from treated areas until the spray has dried.
Bestseller No. 2
Roundup Tree Stump Weedkiller, Super Concentrate 250 ml
  • Kills ivy japanese knotweed, saplings, brambles and nettles to the root
  • Kills up to 16 tree stumps
  • Contains a reusable pipette for specialist treatment of japanese knotweed
  • Kills the roots so weeds don't come back
  • Degraded in the soil by micro organisms
Bestseller No. 3
Weedol 011005 Pathclear Weedkiller Liquid Concentrate, 6 + 2 Tubes
  • Unique dual action fomulation, kills weeds to the root and prevents new weeds growing for up to 3 months
  • Ideal for paths, drives and patios
  • No measuring or mess - just add water
  • Creates an invisible barrier that prevents new weeds for up to 3 months
  • Children and pets need not be excluded from treated areas (once dry)
Bestseller No. 4
RootBlast - RootBlast 360 Glyphosate Home Garden Weedkiller - 1L Bottle with Integral Measuring Device Pair - Includes Pair Of gloves - 1L Makes Up to 50L
  • WEED KILLER CONCENTRATE: Rootblast's strong weed killer is both super-concentrated and tough on most broad leaf and grass weeds. It's specifically designed to bring you the best results by using systematic herbicide technology. It targets weeds from the inside and kills them at their underlying roots, preventing any future growth
  • GLYPHOSATE WEED KILLER: For optimal weed control, Rootblast have created a concentrate weed killer that contains 360g/l of glyphosate. Glyphosate is a broad-spectrum systemic herbicide and crop desiccant that is used by famers. It kills and destroys the weed without affecting the crop. By using glyphosate, Rootblast's weed killer is stronger and more effective than most other weed killers on the market
  • GLYPHOSATE HERBICIDE: This powerful and effective weed killer is designed to target weeds such as dandelion, grasses, docks, nettles, willowherb, bindweed, woody brambles, tree stumps, ivy and more. After applying Rootblast's heavy duty weed killer, the first signs of weed control are visible when the weed leaves yellow - this can take anywhere from a few days to up to 2-4 weeks. From this 1 litre bottle of glyphosate herbicide concentrate, you can make up 50 litres of product when it's diluted
  • DOCK, GRASS & DANDELION KILLER: Alongside this industrial strength weed killer, you'll receive a pair of protective gloves as well as the integral measuring device attached to the bottle. The gloves provide you with protection to ensure your experience is as easy and safe as possible. The integral measuring device is an inbuilt measuring cup, simply remove cap and carefully squeeze the container until the cup is full
  • TOTAL PROTECT WEED GARDEN SPRAY: This easy to use product is available as a ready to use tough, concentrated weed killer that comes with a integral measuring device attached and protective gloves. Use by professional garden and farmers, this product can tackle your weed problem and kill the weed from the root - the ultimate weed killer!
Bestseller No. 5
Rootblast Glyphosate Weedkiller 4 x 100ml Concentrate with 5L Pump Sprayer
  • For use on unwanted vegetation and areas not intended to bear vegetation
  • Contains 72 g/l glyphosate for effective control of annual and deep-rooted perennial garden weeds, including grasses*, docks, nettles, willowherb, dandelion and bindweed. Also suitable for woody brambles, tree stumps and Ivy.
  • Coverage up to 66sqm per sachet

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