How Do Mortgage Lenders Respond to Japanese Knotweed on a Property?

When purchasing a house it is obvious that the potential buyer would get a surveyor to check the condition of the property and estimate its value.  But what if the surveyor discovered the house (which the buyer thought would be his/her perfect home) contains Japanese Knotweed? How would mortgage lenders respond to a property with Japanese Knotweed?

Japanese Knotweed is a plant brought into the UK during the 19th Century for its ornamental beauty.  The plant has changed from being an ornamental plant to being an invasive species that can do serious damage to the physical structures of a property and as a consequence of this it almost certainly affects the decision on whether mortgage lenders will lend on the property.

If Japanese Knotweed is found within or close to the boundary of a property it can lower the value of the property and some mortgage lenders will be reluctant to lend on the property – however  it is not all doom and gloom –  many mortgage lenders will consider lending if there is evidence of a fully funded professional treatment or eradication programme being in place for the property.

One of the most common Japanese Knotweed treatment plans is a Knotweed Management Plan (KMP) drafted in accordance to ‘The Knotweed Code of Practice’, 2013 (version 3).  It is usually the property seller’s responsibility to arrange for an appropriate Knotweed Management Plan and the buyer should satisfy themselves that it is fit for purpose. Ideally it should be provided by a member of the PCA. (Property Care Association).

When arranging a Knotweed Management Plan it is important to use a Property Care Association accredited Japanese Knotweed specialist.  This ensures that the provider of the Knotweed Management Plan adheres to strict standards of professional expertise set by the association.  Each mortgage lender will have their own lending policies and any presence of Japanese Knotweed on a property is going to affect their decisions. There is a possibility that the lender will retain funds from the buyer until the Knotweed has been treated or removed.

Japanese Knotweed Ltd is the UK’s LARGEST PCA accredited Japanese Knotweed Remediation Company. We pride ourselves for our professional experience, quality of service, customer care and competitive quotes.
If you suspect Japanese Knotweed on your property or on a property you are looking to purchase, please speak to us on 01794 330 196 or visit www.japaneseknotweed.co.uk

Alex Evans

You May Also Enjoy

bank of england interest rate
Breaking News

Bank of England holds interest rates at 3.75%

The Bank of England has announced its decision to hold the base rate at 3.75%. This decision comes as a result of wider economic uncertainty and inflation (CPI) increasing to 3.3% in March and remaining above the Bank’s 2.0% target. Here are some thoughts from within the property industry.   Matt Smith, Rightmove’s mortgage expert…
Read More
Rightmove logo
Breaking News

Property valuation leads to agents up 55%

Rightmove, the UK’s largest property portal, has reported a 55% year-to-date uplift in property valuation leads for agents compared with the same period last year (January – May). The uplift follows the launch of Online Agent Valuation in late 2025, designed to help agents engage more effectively with prospective sellers, alongside a series of AI enhancements across Rightmove’s valuation tools. Online Agent Valuation connects agents with motivated homeowners who choose to begin their selling journey…
Read More
Breaking News

Britain’s equestrian homes average value of £1.3m

South East accounts for one in five opportunities The latest research from LandSale, the property portal dedicated to land and rural property, has found that those inspired to enter the equestrian world following Royal Ascot this week will need a budget of £1.265m in order to get started, with the South East home to the…
Read More
Breaking News

Interest-only mortgage stock reduces by 17 per cent in 2025

Key points: There were 445,000 pure interest-only homeowner mortgages outstanding at the end of 2025, 17.7 per cent fewer than in 2024. In addition there were 156,000 partial interest-only (part and part) homeowner mortgages outstanding at the end of 2025, 10.3 per cent fewer than in 2024. The total interest-only mortgage stock (including part and…
Read More
Breaking News

5 building materials that give home sellers nightmares

The latest market insight from House Buyer Bureau has highlighted five building materials that can be a nightmare for homeowners, as they severely impact a property’s value, make it difficult to mortgage, and can prevent them from securing a buyer. House Buyer Bureau analysed some of the most problematic building materials found within UK homes,…
Read More
Breaking News

UK House Price Index for April 2026

The latest UK House Price Index for April 2026 shows that: The average monthly rate of UK house price growth in April was +0.7%. Average UK house price annual inflation was 3.8% in the 12 months to April 2026. As a result, the average UK house price currently sits at £270,080.   Here is how…
Read More